A 14-year-old boy who is accused of shooting and killing his 17-year-old sister in Oakland's Chinatown surrendered Wednesday to police, authorities said.

Mario Toliver was accompanied by family members when he gave himself up at police headquarters downtown about 2:15 p.m., said Officer Johnna Watson, an Oakland police spokeswoman.

Mario is accused of fatally shooting Justice Toliver in the family's fifth-floor apartment at 801 Franklin St., just blocks from police headquarters, about 12:15 p.m. last Thursday. Justice died at the scene.

Family members said Mario shot his sister and that the two, who were very close, had been arguing - including over his belief that she had bleached his clothes. Justice had a 3-year-old daughter and worked at a McDonald's; family members said Mario is the father of an infant.

John Burris, an attorney representing the Toliver family, said he had also spoken to Mario. "He's very young, and he's a bit overwhelmed by all of this," Burris said. "And we're pleased that we were able to get him safely into custody."

Relatives had pleaded for Mario to return to his family and give up. Police lauded the family's efforts in getting him to surrender.

"I do want to thank the family and friends who were in constant contact with this young man, trying to persuade him to turn himself in," said Oakland police Sgt. Mike Gantt. "And I want to take my hat off to them, because they did something that was a great job."

After investigators are done interviewing Mario, he will be taken to the Alameda County Juvenile Justice Center in San Leandro, Watson said.

It will be up to prosecutors to determine whether Mario will face charges and, if so, whether he will be tried as an adult.