Denver ? A 25-year-old man was indicted Wednesday on first-degree murder charges in the drive-by shooting death of Denver Broncos cornerback Darrent Williams on New Year’s Day 2007.

Willie D. Clark faces 39 counts, including murder, attempted murder, assault, crimes of violence and a weapons violation, Denver District Attorney Mitch Morrissey said.

Clark is in federal custody in a separate case. He was long considered a “person of interest” in Williams’ slaying, but is the first suspect to be indicted.

Williams’ mother, Rosalind Williams of Fort Worth, Texas, told the Associated Press that the indictment brought her peace but also dredged up painful memories.

“Oh, I got bittersweet news today,” she said of her phone call from Detective Michael Martinez informing her of Clark’s indictment. “There’s still a long ways to go, a long trial ahead. And we have to make sure this doesn’t happen to another family, too.”

Williams, a former Oklahoma State standout, was shot and killed while riding in a rented limousine early on Jan. 1, 2007, after leaving the Safari Club, a Denver nightclub. He was 24.