Man Arrested for Calif. Triple Slayings

This undated photo released by Garden Grove, Calif., police department shows murder suspect Quang Van Quan, 35, who is wanted in the stabbing deaths of a husband and wife and the wife's 6-year-old son. Quan was arrested at his residence in Houston, Texas Wednesday, July 12, 2006. (AP Photo/Garden Grove Police Department) (Ao)

GARDEN GROVE, Calif. -- A man wanted in the stabbing deaths of a couple and a 6-year-old boy who were found in their home with a starving 1-year-old girl has been arrested, police said Friday.

Quang Van Quan, 35, was arrested Wednesday in Houston, police Lt. Mike Handfield said. Quan is considered a primary suspect in the slayings, Handfield said, although investigators were searching for at least one other person. He was booked for investigation of murder.

"The motive was robbery. We think this suspect was after a large amount of money that he was owed from a recent debt," Handfield said. He declined to elaborate.

Police found the bodies of Phuong Hung Le, 30, his wife, Trish Dawn Lam, 25, and Lam's 6-year-old son, Tommy, when they conducted a welfare check May 29 at the family's Orange County home about 35 miles southeast of Los Angeles.

The couple's 1-year-old daughter was beaten, dehydrated and wearing a soiled diaper when she was found in the house with the bodies. She remained in protective custody Friday and was "doing well," Handfield said.

Investigators said at least two of the victims were bound and tortured before they were killed sometime during the Memorial Day weekend.

Le and Quan met when both were in state prison in the mid-1990s. Le was serving about nine years for robbery and weapons convictions, and Quan was doing 14 years for a home invasion robbery in which he broke into a Los Angeles home, bound and threatened a man, then stole his money, Handfield said.

Quan ran an import-export business in Houston. Police are investigating the legitimacy of the business, the lieutenant said.