Rock producer Phil Spector will reportedly contend that the Feb. 3 shooting death of actress Lana Clarkson at his suburban Los Angeles home was accidental. "I believe his defense will be that this was a tragic accident," said attorney Marvin Mitchelson, a longtime Spector pal. "I've spoken with various individuals connected with the case, and I'm 100 percent certain it's not a homicide." Spector, 62, remains free on $1 million bond.