Officials say a man who was identified as a possible new suspect in the 1991 killing and sexual assault of a Virginia woman who was visiting Hawaii killed himself last week after police took a DNA swab from him.

Ever since O.J. Simpson was acquitted of murdering Nicole Brown Simpson and Ronald Goldman 25 years ago, it’s been well-documented what Simpson has been up to, most notably, serving almost nine years in a Nevada prison for his role in a 2007 sports memorabilia robbery.

MEMPHIS, TN Since the early 1990s, 22 death row inmates around the U.S. have been exonerated through DNA evidence. Now, the Innocence Project hopes to go even further and use DNA evidence to exonerate a Tennessee man executed 13 years ago. Sedley Alley received a lethal injection in 2006 for the July 1985 murder of 19-year-old Marine Lance Cpl. Suzanne Collins, who was raped and beaten near the former Memphis Naval Air Station in Millington. Her attorneys include Innocence Project co-founder Barry Scheck, who says investigators outside Tennessee contacted him about an alternative suspect in Collins death.