A Louisiana grand jury delivered a surprise yesterday by indicting a man not only for the murder of a missing college student, but also for an unsolved cold case killing from 1999.

The indictment of Brandon Scott Lavergne, 33, a registered sex offender, for the murder of University of Louisiana undergrad Mickey Shunick was expected. Police arrested him two weeks ago, though Shunick's body hasn't been found since she vanished in May.

Cops linked him to Shunick because he owns a truck that was seen trailing the 21-year-old as she rode her bicycle the night she disappeared. The Chevy pickup was found burned in Texas days later while Shunick's damaged bike turned up beneath a bridge.

The stunning development yesterday in a Lafayette Parish court was an apparent break in the 13-year-old investigation into the slaying of Lisa Pate. The 35-year-old woman was reported missing in June 1999 and then found buried beneath boards in a field in Church Point, Louisiana, according to the Associated Press.

PHOTOS of Mickey Shunick (story continues below):

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  • Mickey Shunick

    Authorities in Louisiana are searching for Michaela "Mickey" Shunick, a 22-year-old senior anthropology major at the University of Louisiana, who was last seen on the morning of May 19.

  • Brandon Lavergne

    Brandon Lavergne was arrested on a murder charge in connection with Louisiana college student Mickey Shunick's disappearance.

  • Mickey Shunick

    Mickey Shunick left a friend's home on Ryan Street in Lafayette, Louisiana on the morning of May 19. Shunick was cycling to her home on Governor Miro Drive, a distance of about four miles, when she vanished without a trace, the Lafayette Police Department said.

  • Mickey Shunick

    Ashley Says and Brettly Wilson, friends of Mickey Shunick, give instructions to friends, family and other concerned volunteers at the beginning of a search party for Shunick, a 21-year-old woman last seen on her bicycle leaving Wilson's house on Ryan Street, pictured, in the early overnight hours Saturday in Lafayette. (<a href="http://www.theadvertiser.com/apps/pbcs.dll/article?AID=2012205220313" target="_hplink">Leslie Westbrook, The Advertiser</a>)

  • Mickey Shunick

    Friends, family and other concerned volunteers begin a search for Mickey Shunick, a 21-year-old woman last seen on her bicycle leaving a home on Ryan street in the early overnight hours Saturday in Lafayette. (<a href="http://www.theadvertiser.com/apps/pbcs.dll/article?AID=2012205220313" target="_hplink">Leslie Westbrook, The Advertiser</a>)

  • Mickey Shunick

    A private donor is offering a $10,000 reward for any information leading to Mickey Shunick's whereabouts, no questions asked.

  • Mickey Shunick

    Volunteer and friend Ashley Says comforts Charlie Shunick, Mickey Shunick's sister, on Monday, Mickey's 22nd birthday. (<a href="http://www.theadvertiser.com/apps/pbcs.dll/article?AID=2012205220313" target="_hplink">Megan Wyatt, The Advertiser</a>)

  • Mickey Shunick

    Mickey Shunick is described as a white female, 5'1" tall and approximately 115 lbs. She has shoulder-length blonde hair and blue eyes. Shunick has a small tattoo of a bicycle on her right outer ankle and a nose ring on her left nostril. She was last seen wearing a pastel striped shirt, light wash denim skinny jeans, and silver ankle boots. She was carrying a light brown leather backpack, a black and yellow Vera Bradley wallet, a black Verizon slider phone and a small pink container of mace.

  • Mickey Shunick

    Mickey Shunick's siblings, Charlie and Zack Shunick, investigate possible routes Mickey traveled on her bicycle early Saturday morning. (<a href="http://www.theadvertiser.com/apps/pbcs.dll/article?AID=2012205220313" target="_hplink">Megan Wyatt, The Advertiser</a>)

  • Mickey Shunick

    Friends, family and other concerned volunteers begin a search for Mickey Shunick, a 21-year-old woman last seen on her bicycle leaving a home on Ryan street in the early overnight hours Saturday in Lafayette. (<a href="http://www.theadvertiser.com/apps/pbcs.dll/article?AID=2012205220313" target="_hplink">Leslie Westbrook, The Advertiser</a>)

  • Mickey Shunick

    Friends, family and other concerned volunteers begin a search for Mickey Shunick, a 21-year-old woman last seen on her bicycle leaving a home on Ryan street in the early overnight hours Saturday in Lafayette. (<a href="http://www.theadvertiser.com/apps/pbcs.dll/article?AID=2012205220313" target="_hplink">Leslie Westbrook, The Advertiser</a>)

  • Mickey Shunick

    Mickey Shunick's siblings, Charlie and Zack Shunick, investigate possible routes that Mickey traveled on her bicycle early Saturday morning. (<a href="http://www.theadvertiser.com/apps/pbcs.dll/article?AID=2012205220313" target="_hplink">Megan Wyatt, The Advertiser</a>)

  • Mickey Shunick

    Ashley Says, left, and Lindsay Beggs, friends of Mickey Schunick, post flyers Sunday morning during a search Schunick, a 21-year-old woman last seen on her bicycle leaving a home on Ryan street in the early overnight hours Saturday in Lafayette. (<a href="http://www.theadvertiser.com/apps/pbcs.dll/article?AID=2012205220313" target="_hplink">Leslie Westbrook, The Advertiser</a>)

  • Mickey Shunick

    Police in the Lafayette area encourage anyone with any information regarding Mickey Shunick's whereabouts to contact them at 337-291-8600. Tipsters can also send an email to findmickeyshunick@yahoo.com.

  • Ashley Says, Kim Schifino and Mickey Shunick

  • Mickey Shunick with her brother Zack, her sister, Charlene, her father Mckey and her mom Nancy.

  • Mickey Shunick and her sister Charlene

  • Mickey Shunick and her sister Charlene

  • Mickey Shunick and Raven Talley

  • Ashley Prado, Marion Trosclair and Mickey Shunick

However, authorities released little information yesterday connecting Lavergne to Pate's death, the Daily Advertiser reported.

Lavergne, 33, was labeled a sex offender after kidnapping and sexually assaulting an 18-year-old woman in 1999. He went to jail for eight years.

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