Lucy Preciado, 26

Lucy Preciado, 26, a Latina woman, was stabbed to death during a domestic dispute in the 4100 block of West Avenue L in Lancaster about 2 a.m. Saturday, July 12. Paramedics pronounced Preciado dead at the scene.

The Los Angeles County Sheriff's Department said Preciado was found dead inside her home. She was stabbed by a large sword, possibly in front of her four children, who were inside the house when deputies arrived.

Detectives from the Sheriff's homicide bureau sought the public's help in locating Preciado's 28-year-old Latino boyfriend, Jesus Humberto Canales, at right. Authorities said Canales is wanted for questioning in the alleged stabbing of Preciado.

Authorities said Canales is driving a 2002 bronze GMC Safari van with a California license plate 6CBY663. Authorities said Canales is considered to be armed and dangerous.

Anyone with information is asked to contact Sheriff's homicide bureau detectives at (323) 890-5500.

Update: Lucy Preciado is 26 years of age. Her boyfriend, Jesus Humberto Canales, is 28 years of age, according to a news report.

Update, Nov. 16, 2013: Jesus Humberto Canales was arrested in Mexico on Thursday, Nov. 14, and arrived in Los Angeles the next day. He is expected to be arraigned Monday. More at L.A. Now: Man is arrested in 2008 slaying of woman stabbed with sword