On Friday, an 18-year-old student allegedly shot two women with a 12-gauge shotgun at the mall branch of New River Community College in Christiansburg, Va. The New River shooting took place just six miles from Virginia Tech, the location of the deadliest school shooting in American history on April 16, 2007. Tuesday is the sixth anniversary of that horrific day.

So far in 2013, there have been at least 13 shootings on or directly adjacent to a college campus, including an incident Monday night at Grambling State University in Louisiana.

If there is any good news in these numbers, none of these shootings resulted in the massive loss of life like those at Virginia Tech and Sandy Hook Elementary School. But campus lockdowns seem to take place almost every week -- at least five in the past week -- as individuals are reportedly sighted with a firearm, providing a constant reminder of what could happen.

Since Virginia Tech, there have been at least three "active shooter" scenarios at colleges. The most recent took place at Oikos University in Oakland, Calif., on April 2, 2012, when seven people were killed.

According to authorities, Sandy Hook killer Adam Lanza researched the 2008 Northern Illinois University shooting, in which six people were killed and 21 injured.

Today Congress is struggling to pass gun control measures in the wake of the Sandy Hook tragedy, but the Virginia Tech massacre did lead to legislative change.

It became apparent only after the Virginia Tech shooting that the killer, Seung-Hui Choi, should have failed his background check to purchase a weapon due to mental illness. Court records showed that Choi had been declared "an imminent danger to himself as a result of mental illness," but his name was never submitted to the National Instant Criminal Background Check System.

Later that year, Congress passed the NICS Improvement Amendments Act of 2007, which was signed into law by President George W. Bush in January 2008. The law authorized up to $1.3 billion in federal grants to help states make records available to the FBI.

But according to Mayors Against Illegal Guns, a pro-gun control group, Congress only supplied 5.3 percent of the authorized amount from fiscal year 2009 through fiscal year 2011. Moreover, 23 states and the District of Columbia have each submitted fewer than 100 mental health records to the NCIS, according to a report from Mayors Against Illegal Guns.

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  • Hazard Community College

    On Jan. 15, 2013, two people were shot and killed, and a teen was wounded in the parking lot of Hazard Community College in eastern Kentucky.

  • Stevens Institute Of Business And Arts

    Also on Jan. 15, 2013, a part-time student strode into the office of a longtime administrator at the Stevens Institute of Business and Arts in St. Louis and shot the man in the chest, police said.

  • University of Central Florida

    A double shooting <a href="http://knightnews.com/2013/01/suspect-named-in-double-shooting-at-campus-crossing-near-ucf/">took place near</a> the University of Central Florida campus at the Campus Crossing apartment complex in January 2013.

  • Pennsylvania College of Technology

    In early January, <a href="http://www.pennlive.com/midstate/index.ssf/2013/01/person_shot_to_death_near_penn.html">PennLive.com reported</a> that the Pennsylvania College of Technology had issued an email alert after an individual was shot to death close to campus.

  • Lone Star College, North Harris Campus

    Multiple people were <a href="http://www.huffingtonpost.com/2013/01/22/lone-star-college-shooting_n_2527806.html" target="_blank">injured on Jan. 22, 2013, in a shooting</a> on Lone Star College's North Harris campus in Texas.

  • Morehouse College

    The Associated Press <a href="http://www.accessnorthga.com/detail.php?n=257892">reported on Feb. 2, 2013,</a> that a Morehouse College student has been hospitalized after being shot over a pick-up basketball game. <blockquote>Morehouse spokeswoman Elise Durham said the shooting happened at Samuel A. Archer Hall. Police spokesman John Chafee says officers responded to a report of a shooting on the campus and turned the investigation over to Morehouse campus police. Durham says four shots were fired and the unidentified student is in stable condition at Grady Memorial Hospital. </blockquote> Two of the people suspected in the shooting are believed to be students at the Atlanta University Center, according to AP.

  • MIT

    MIT police officer Sean Collier was killed while pursuing the Boston Marathon Bombing suspects in a confrontation on campus on April 18. <em>Photo: Massachusetts Institute of Technology police officers form a line in front of the federal courthouse in Boston prior to the arraignment of Boston Marathon bombing suspect Dzhokhar Tsarnaev Wednesday, July 10, 2013. The 19-year-old Tsarnaev was charged with using a weapon of mass destruction.</em>

  • Indian River State College

    On Feb. 7, a student was shot in the parking lot of a training complex near the main campus of Indian River State College in Fort Pierce, Fla. <a href="http://www.wptv.com/dpp/news/region_st_lucie_county/fort_pierce/indian-river-state-college-police-training-facility-shooting-reported#ixzz2KKMG1ISy">WPTV reports</a>: <blockquote>A female student at Indian River State College was shot and injured as a gunman and police traded fire Thursday in the parking lot of the college's campus, a college spokeswoman said. The student was injured as police converged on the armed man in the parking lot of the Treasure Coast Public Safety Complex on the college's campus at 4600 Kirby Loop Road in Fort Pierce.</blockquote>

  • Florida Atlantic University

    WPTV reported that <a href="http://www.wptv.com/dpp/news/region_s_palm_beach_county/boca_raton/fau-shooting-report-florida-atlantic-university-shooting-reported-on-school-campus#ixzz2KKGIzlWw">one person was shot</a> at Florida Atlantic University on Feb. 8, prompting an evacuation of the campus.

  • University of Maryland

    Police said that University of Maryland graduate student Dayvon Green<a href="http://collegepark.patch.com/articles/umd-wasn-t-aware-of-shooter-s-mental-illness"> lit a fire in the basement </a>of a house he shared with two roommates near campus. When the roommates came outside, Green <a href="http://www.wjla.com/articles/2013/02/college-park-shooting-and-fire-85119.html" target="_blank">reportedly shot at both </a>them before killing himself. One roommate died, the other survived, and it was later found out that Green had a mental disorder.

  • Coastal Carolina University

    A shooting took place at a university residence hall at Coastal Carolina University on Feb. 26, <a href="http://www.huffingtonpost.com/2013/02/26/coastal-carolina-shooting_n_2769939.html">Reuters reported</a>. One person <a href="http://www.huffingtonpost.com/2013/02/27/coastal-carolina-shooting_n_2770909.html">was killed</a>.

  • New River Community College

    <a href="http://www.huffingtonpost.com/2013/04/12/new-river-valley-mall-shooting_n_3071919.html" target="_blank">AP reported</a> on April 12 that a man shot two women at a mall branch of New River Community College in Christiansburg, Va.: <blockquote>One of the victims was airlifted to a hospital and the other was taken by ambulance for treatment, said Christiansburg city spokeswoman Becky Wilbur. Their conditions and identities were not immediately available.</blockquote>

  • Elizabeth City State University

    A shooting at Elizabeth City State University in North Carolina put the campus on lockdown, <a href="http://www.fox43tv.com/dpps/news/local/shooting-locks-down-ecsu_5958042" target="_blank">WAVY reported</a> on April 13: <blockquote>At a news conference today, the ECSU Police Chief Sam Beamon confirmed he spoke with a 23-year-old named Jake (we will not release his last name) and he is back on campus and was shot once in the right thigh. Beamon confirms Jake was shot outside Butler Hall, a university dormitory hall, late Saturday night.</blockquote> This was the second shooting on the campus within a week.

  • Stillman College

    A shooting took place on the campus of <a href="http://blog.al.com/tuscaloosa/2013/04/student_charged_with_attempted.html" target="_blank">Stillman College on April 16, 2013</a>, AL.com reported: <blockquote>A Stillman College student was charged with attempted murder in the shooting of another student on the college's campus Tuesday night. Elgerondo Williams, 22, was arrested and charged with attempted murder after he turned himself in, said Tuscaloosa County Metro Homicide Unit assistant commander Lt. Kip Hart. Williams is accused of shooting a 19-year-old man twice in the torso with a small caliber handgun after arguing with the victim over money owed on a bet, Hart said. Both men are students at Stillman College.</blockquote>

  • Kilgore College

    <a href="http://www.news-journal.com/news/local/two-arrested-after-shooting-robbery-near-kilgore-college-campus/article_fda5d5ca-a834-11e2-b00d-001a4bcf887a.html">The News-Journal reported on April 18, 2013</a>:<blockquote> Two people have been arrested after an overnight shooting and robbery near the Kilgore College campus left two others injured. Nickolas Rinche and Phue Nguyen have been charged with aggravated robbery after the incident, which happened around midnight at apartments near the 700 block of Houston Street north of campus, according to Kilgore College police.</blockquote>

  • Murray State University

    An Army veteran accidentally shot himself inside a fraternity house at Murray State University, <a href="http://www.rawstory.com/rs/2013/05/07/army-veteran-accidentally-shoots-himself-dead-inside-fraternity-house/" target="_blank">Raw Story reports</a>: <blockquote>The Murray Ledger & Times reported on Tuesday that 23-year-old Clayton Law was inside the Alpha Sigma Phi house at Murray State University in Murray, Kentucky, showing the firearm when he shot himself in the head. He was declared dead early Sunday morning. A spokesperson for the Murray Police Department said authorities did not suspect foul play was involved in Law's death. The university's associate vice president for student affairs, Mike Young, said Law was a member of the fraternity, but did not live inside the group's on-campus home.</blockquote>

  • Santa Monica College

    A <a href="http://www.huffingtonpost.com/2013/06/07/santa-monica-college-shooting_n_3404689.html?1370635282" target="_blank">shooting at Santa Monica College</a> on June 7, 2013, left five people dead and several injured. <em>PHOTO: In this file photo provided by the Santa Monica Police Department during a news conference Saturday, June 8, 2013, shows a video frame grab from a surveillance camera revealing the suspect entering Santa Monica College Friday, in Santa Monica, Calif. The Police chief said that the gunman who went on a chaotic rampage killing four people before being fatally shot by police at the college planned the attack and was capable of firing 1,300 rounds of ammunition. (AP Photo/Santa Monica Police Department, File)</em>

  • Morehouse College

    <a href="http://cascade.patch.com/articles/morehouse-college-confirms-one-student-shot-dead-thursday-evening" target="_blank">From Patch</a> in June 2013: <blockquote><em>The following is a letter from Morehouse College in regards to the double shooting on Thursday evening, just off campus.</em> ... The Morehouse College community was shocked and saddened to learn that on Thursday, June 13, one of our students was killed and another man wounded in a shooting at the intersection of Parson Street and Webster Street near the campus.</blockquote>

  • Howard University

    A rising senior at Howard University in Washington, D.C., was shot and killed in an attempted<a href="http://articles.washingtonpost.com/2013-07-05/local/40378386_1_howard-s-web-site-student" target="_blank"> robbery on July 4, 2013, just off campus</a>.

  • Lane College

    Shots were fired on the Lane College campus on Sept. 17 in Jackson, Tenn. Via <a href="http://www.wbbjtv.com/news/local/Suspected-Gunman-Turns-Self-in-after-Lane-College-Shooting--224175971.html" target="_blank">WBBJ</a>: <blockquote>Jackson police announced the prime suspect in a shooting on Lane College's campus turned himself in approximately 6 hours after several shots were fired, Tuesday. Police said Vinton Antonio Grant, 18, of Somerville surrendered around 7 p.m. Tuesday for a charge of reckless endangerment with a deadly weapon. Officials said officers responded to a shots fired call at Lane College around 1 p.m. near the Graves Hall dormitory, Tuesday. Police told WBBJ 7 Eyewitness News Grant fired at least three shots into the vicinity of some students then reportedly ran north into a waiting Oldsmobile Alero that was parked on Middleton Street. </blockquote>

  • Savannah State University

    A <a href="http://www.waff.com/story/23492020/gbi-looking-into-shooting-that-put-savannah-state-on-lockdown" target="_blank">20 year-old died </a>after a shooting on the campus of Savannah State University in Georgia in Sept. 2013.

  • North Carolina Central University

    Campus police at <a href="http://www.huffingtonpost.com/2013/09/24/nccu-shooting_n_3980545.html" target="_blank">North Carolina Central University in Durham, N.C.,</a> shot and killed a man near the southeast part of the campus on Sept. 23 after the suspect threatened officers with a handgun, NCCU Police Chief Tim Bellamy said.

  • University of South Carolina

    Two people were arrested in October after a University of South Carolina college student was shot near campus in an area heavily populated with students from the school. <a href="http://www.thestate.com/2013/10/13/3036943/young-woman-shot-sunday-in-five.html" target="_blank">The State reports</a>: <blockquote>USC president Harris Pastides Sunday night issued a statement expressing his outrage at the violence: "I am shocked and deeply saddened to learn that a random act of gun violence has harmed one of our students in the Five Points area early this morning," Pastides said. ... The Five Points area, just east of USC's main campus, draws thousands of USC students every weekend. Students also come from colleges across the state, and the resulting crowds jam the bars and streets every Saturday night, especially during the fall football season. For several years, it has been plagued by sporadic incidents of gun and knife violence, beatings, arson and drunken drivers.</blockquote> The injured student <a href="http://www.huffingtonpost.com/2013/10/16/martha-childress-shot_n_4109901.html" target="_blank">may never walk again</a>.

  • Fresno City College

    A gun battle involving four armed men erupted on the Fresno City College campus in October, <a href="http://www.kmvt.com/news/regional/Gun-Battle-Erupts-In-College-Parking-Lot-227923261.html" target="_blank">KMVT reported</a>. Bullets shattered car windows and damaged the campus greenhouse before the suspects took off, according to the station.

  • North Carolina A&T State University

    The <a href="http://www.huffingtonpost.com/2013/11/03/devine-eatmon-shot-nc_n_4207977.html?" target="_blank">AP reported on Nov. 3</a>: <blockquote>Shots fired on homecoming weekend at North Carolina A&T State University prompted a brief campus lockdown after a 21-year-old man was wounded by a bullet fired from a "considerable distance," authorities said. Greensboro Police Department said in overnight statements that "one or more" suspects fired shots in a grassy area near McCain Hall on campus about 10 p.m. Saturday and one of the rounds struck 21-year-old Devine Eatmon. Authorities said they were seeking four suspects believed armed with handguns.</blockquote>

  • Wingate University

    Two men were arrested in a connection with a pair of shooting deaths near Wingate University in North Carolina, the AP reported <a href="http://hosted.ap.org/dynamic/stories/U/US_SHOOTING_CAMPUS_LOCKDOWN?SITE=AP&SECTION=HOME&TEMPLATE=DEFAULT" target="_blank">on Dec. 5</a>. The shooting prompted a campus lockdown.