A former West Sacramento Police officer convicted of kidnapping and sexually assaulting women while on duty has been sentenced to life in prison.

38-year-old Sergio Alvarez today was handed multiple 25-years-to-life sentences for forced oral copulation and rape; 7 years-to-life terms for kidnapping; more years still for rape and oral copulation under color of authority.

He was convicted of over 18 counts of kidnapping and sexual assault.

Alvarez kidnapped women off the street in 2011 and 2012 while working the graveyard shift, targeting prostitutes and addicts.

His wife had also fled with their three kids.

In a letter to the court, she wrote Alvarez was an out of control man who "became my abuser, not my husband or friend."