KANSAS CITY, Mo. -- Police are looking for a man who is accused in the shooting deaths of four people early Friday morning.

Terrance Robinson, 22, of Kansas City, was charged Sunday with killing Tracy Pearson, 39; Tiara M. Haynes, 23; Paul Long, 40; and Kevin Brown, 51. The four were shot to death around 2 a.m. Friday at Pearson's apartment.

Police issued a warrant in Jackson County charging Robinson with four counts of first-degree murder, four counts of armed criminal action and burglary.

Pearson's mother, Suzanne Thurman, who owns the apartment house, discovered the victims.

She said she didn't hear gunshots, but heard the front screen door slamming against a mailbox. When she went to investigate the noise, she found her daughter and two others already dead. She comforted the fourth victim as he lay dying.

The television was on in a front room where three of the victims were found. Pearson was found near her bedroom.

"She was in her pajamas," Thurman said. She 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."

Family friend James Hill said he thought Pearson was an innocent bystander.

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.

Pearson's uncle, Leonard Thurman, said his family didn't know Robinson. He didn't know if any of the other victims knew him.