A 15-year-old boy is charged with attempted first-degree murder after he allegedly opened fire on a fellow student during the first day of school.

Police identified the suspect as Robert Wayne Gladden, accused of shooting a Perry Hall High School classmate just before 11:00 a.m in the cafeteria, the Baltimore Sun reports.

Witnesses said that Gladden shot one round at the victim's back before teachers at the Baltimore County high school grabbed him, releasing a second round toward the ceiling.

As of Monday evening, the 17-year-old victim remained in critical condition under supervision at the Maryland Schock Trauma Center.

According to the Associated Press:

The suspect's father spoke to a reporter at his home that evening and said his son was the shooter. When asked about a motive for the shooting, the father indicated his son had been bullied. He gave no further details.

A woman who was also at the home and said she was related to the father, gave the following statement on the family's behalf: "We are horrified. We did not see this coming and our thoughts and prayers are with the victim and the victim's family."

In a statement Monday, U.S. Secretary of Education Arne Duncan, who recently made an unrelated visit to the school, expressed his sympathies for the community.

"My thoughts are with the Perry Hall High School community -- students, families and faculty -- in this difficult time," he said. "Gun violence has no place anywhere, least of all in our nation's schools. I'd like to thank the local educators and law enforcement personnel who took action to help prevent additional students from getting hurt.

Authorities delayed naming Gladden as the suspect until they decided to charge him as an adult. He is also charged with first-degree assault.

Gladden is scheduled to appear at a preliminary hearing on Sept. 7, Patch reports. He is detained without bail at the Baltimore County Detention Center.

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  • Robert Wayne Gladden Jr

    This booking photo made available by the Baltimore County Police Department, shows Robert Wayne Gladden, Jr., 15, of Baltimore. Gladden, Jr. was charged as an adult with attempted first degree murder and first degree assault in the shooting of a classmate on the first day of school at a Baltimore high school. (AP Photo/ Baltimore County Police Department)

  • Andrew Piper

    This Aug. 28, 2012 photo provided by the Baltimore County Police Department shows Andrew Piper of Baltimore. Piper is the stepfather of Robert Wayne Gladden, Jr, who was charged as an adult with attempted first degree murder and first degree assault in the shooting of a classmate on the first day of school at a Baltimore high school. Piper was arrested on charges unrelated to the shooting. He was charged with illegal possession of weapons and drugs at his home. (AP Photo/ Baltimore County Police Department)

  • Robert Gladden

    Profile picture from Robert Gladden's Facebook page

  • Robert Gladden

    Profile picture from Robert Gladden's Facebook page

  • Robert Gladden

    Profile picture from Robert Gladden's Facebook page

  • Tracie Bradford, of Perry Hall, Md., consoles her daughter Leah, a student at Perry Hall High School who says she was in the school's cafeteria when a student was shot there and critically wounded on the first day of classes, Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)

  • Parents gather at Ebenezer Road outside Perry Hall Middle School. Several had been notified by their children that a shooting happened at the nearby high school. <a href="http://perryhall.patch.com/articles/breaking-shooting-at-perry-hall-high-school" target="_hplink">Credit: Patch</a>

  • From left: Sarah Erpenstein and Carol Erpenstein. Sarah Erpenstein told Patch that she was in the cafeteria at the time of the shooting. <a href="http://perryhall.patch.com/articles/breaking-shooting-at-perry-hall-high-school" target="_hplink">Credit: Patch</a>

  • Students continue to file out of Perry Hall High School Monday afternoon following a shooting Monday morning. <a href="http://perryhall.patch.com/articles/breaking-shooting-at-perry-hall-high-school" target="_hplink">Credit: Patch</a>

  • Parents gather at Ebenezer Road outside Perry Hall Middle School. Several had been notified by their children that a shooting happened at the nearby high school. <a href="http://perryhall.patch.com/articles/breaking-shooting-at-perry-hall-high-school" target="_hplink">Credit: Patch</a>

  • Parents gather at Ebenezer Road outside Perry Hall Middle School. Several had been notified by their children that a shooting happened at the nearby high school. <a href="http://perryhall.patch.com/articles/breaking-shooting-at-perry-hall-high-school" target="_hplink">Credit: Patch</a>

  • Parents and students try to reunite after a student was shot and critically wounded on the first day of classes at Perry Hall High School, Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)

  • Becky Hobgood tries to locate her daughter after a student was shot and critically wounded on the first day of classes Perry Hall High School, Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)

  • Students evacuate Perry Hall High School after a student was shot and critically wounded on the first day of classes Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)

  • Parents wait to reunite with their children after a student was shot and critically wounded on the first day of classes at Perry Hall High School, Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)

  • Parents and students try to find each other after a student was shot and critically wounded on the first day of classes at Perry Hall High School Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)

  • A Baltimore County police officer speaks to a parent as students are evacuated from Perry Hall High School after a student was shot and critically wounded on the first day of classes Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)

  • Parents and students try to reunite after a student was shot and critically wounded on the first day of classes at Perry Hall High School, Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)

  • Tracie Bradford, Leah Bradford

    Tracie Bradford, of Perry Hall, Md., consoles her daughter Leah, a student at Perry Hall High School who says she was in the school's cafeteria when a student was shot there and critically wounded on the first day of classes, Monday, Aug. 27, 2012, in Perry Hall, Md. A suspect was taken into custody shortly after the shooting, according to police. No one else was reported injured. (AP Photo/Steve Ruark)