LOS ANGELES—Police asked the public for help Dec. 27 in finding a Sun Valley couple who are under investigation for alleged neglect of their three children and narcotics abuse. The couple’s youngest child, Legend Avalos, tested positive for cocaine along with the baby’s mother when the child was born on Dec. 2, accoridng to the authorities. The Los Angeles County Department of Children and Family Services sought a court order to place the children of Luis Avalos and Arely Anaya in protective custody. The couple’s other two children are 4-year-old Prince Anaya and 5-year-old King Anaya. According to the Los Angeles Police Department (LAPD), the parents were made aware of the department’s intention to remove their children from the home and no longer responded to phone calls, nor answered their door for social workers. On Monday, the department spoke with detectives from the LAPD’s Foothill juvenile division and said they were seeking a court order and an arrest warrant for the …