Keith Cos Williams, a 30-year-old Black man from Chester, Pennsylvania, was killed by gunfire on November 18, 1997. The killing became the subject of a Delaware County murder prosecution that centered on 19-year-old James Curtis Campbell of Chester, who was charged with first-degree murder.

Prosecutors at Campbell’s February 1999 trial said he retrieved a gun and hunted Williams down after an earlier confrontation tied to alleged unpaid gambling losses from a crap game, arguing Campbell had intent and premeditation. The defense presented testimony from psychologist David Mahalick that Campbell suffered from organic brain damage and lacked the capacity to premeditate, contending the shooting did not meet the legal standard for first-degree murder. The jury convicted Campbell and he was sentenced to life in prison.

Did anyone who knew Williams or was in Chester in November 1997 see or hear anything relevant to the dispute that led to his death?