New murder charges have been filed in a 15-year-old slaying based on the recollections of the victim's son, who was 5 years old at the time.

Authorities said the boy's mother and a former neighbor with whom police said she was romantically linked were implicated by the "total recall" of John Mudd Jr., who remembered the night of the killing in a conversation with an uncle five months ago.Allegheny County police this week issued an arrest warrant for Steven G. Slutzker, the former neighbor who initially was charged in the shooting death but who was not tried because of lack of evidence.

Arlene Mudd, the child's mother, was arraigned on charges of criminal homicide and criminal conspiracy and held in the Allegheny County Jail without bond.

At the time of the shooting, family members would not allow police to question the child, now 20, about what he remembered seeing Dec. 28, 1975, the night his father was found dead in the basement of the family's suburban Pittsburgh home here.

The new evidence came to light in November when they received a call from James Mudd, the victim's brother and the younger Mudd's uncle, police said.

James Mudd told police his nephew began to relate to him all that he remembered about the night his father, John Mudd Sr., then 28, was found dead with six gunshot wounds to the head and chest.

The younger Mudd recalled hearing seven "loud noises" and saw a man he identified as Slutzker walk from the kitchen and into the living room, according to an affidavit.

Mudd recognized Slutzker as "the man who he had seen trying to kiss his mother not too long before his father was killed," the affidavit stated.

Arlene Mudd, 39, had blamed the slaying on a burglar. She told police her husband went into the dark basement to check why their television had gone blank.