CASTRO VALLEY -- A man suspected in his wife's slaying last week surrendered to police Monday night, an Alameda County Sheriff's Office spokeswoman said.

Feng Mi, of Castro Valley, turned himself in just after 10:45 p.m. to the Cal State East Bay Police Department in Hayward and was taken into custody without incident, Sheriff's Office Deputy April Luckett said. He was wanted in the fatal shooting death last week of his wife, Yun Yi Zhang, 45.

After Mi surrendered, sheriff's deputies were sent to the campus to take him to the Sheriff's Office Eden Township substation in San Leandro.

When investigators attempted to speak with Mi, he asked for an attorney. As of Tuesday, he had refused to speak with investigators about the case, Luckett said.

Deputies found Zhang's body inside the couple's Stanton Avenue home on March 14, just one day before Mi's 45th birthday. The body had been discovered around 4 p.m. inside the family's three-story home by her 14-year-old daughter. Investigators say the girl was not home at the time of the shooting.

The couple also has an 8-year-old daughter, Luckett said. Over the weekend the children were kept at an undisclosed location for their safety.

Investigators have not established a motive for the shooting and have not said how many times Zhang was shot or exactly where she was in the home.

Sheriff's officials deemed Mi armed and dangerous over the weekend after finding one of his two guns had been removed from the home on the 19000 block of Stanton Avenue.

The second firearm was still outstanding on Tuesday, Luckett said.

A silver 2013 Toyota Rav4 that Mi was driving was also recovered Monday near the Cal State East Bay campus, Luckett said.

Mi was being held without bail Tuesday at the Santa Rita Jail, officials said.

An autopsy was conducted Monday on Zhang, Luckett said.

"We're asking anyone who knows anything about this horrible crime to come forward and talk with us," Luckett said.

The couple, investigators say, has a history of domestic violence. In 2009, authorities responded to the home three times for domestic-related disputes.

Anyone with information about the killing is asked to call the Sheriff's Office anonymous tip line at 510-667-3622.

Contact Natalie Neysa Alund at 510-293-2469.