Kansas City, Mo. ? Investigators hunted Saturday for what they believed was a lone gunman in a quadruple homicide at a home near the city’s midtown section.

More than 24 hours after the killings, police still had not suggested a motive or released the names of the two men and two women fatally shot just before 2 a.m. Friday.

But one of the victims, 39-year-old Tracy Pearson, was identified by her mother – who owns the two-story home and lives in an apartment on the second floor. Suzanne Thurman said her daughter moved into a first-floor apartment about six months ago.

Thurman said that she never heard gunfire early Friday but that she was alerted by the banging of a front screen door against a mailbox. She followed the sound and found her daughter dead near a bedroom.

Thurman said the other victims were friends of Pearson and appeared to have been watching a DVD before the gunman entered the apartment and started shooting.

A witness reported seeing a heavy-set man in a black jacket running away.

“I’ve heard they was after someone else,” Thurman said of the killer. “Someone else said they were after all of them.

“It doesn’t make any difference to me,” she added. “The only thing that is important … is that my child is dead, and why she’s dead, I don’t know.”

Pearson, mother of a 19-year-old college student, had worked as a waitress and cook but recently became unemployed. She liked to cook for friends and invite them over to eat and play cards, friends said.