A Palmdale woman and her boyfriend were each sentenced today to life in state prison for the killing of her 23-month-old son three years ago, the Los Angeles County District Attorney's Office announced.

Brandon Jerel Williams, 27, was sentenced to 25 years to life in state prison and Rosie Lee Wilson, 23, received a 15-years-to-life sentence.

On May 30, Williams was found guilty of first-degree murder, torture and assault on a child causing death. Wilson was convicted of one count each of second-degree murder and child abuse.

Deputy District Attorneys Jon Hatami and Scott Yang prosecuted the case.

On Aug. 21, 2014, three months after Williams moved in with Wilson, victim Anthony Wilson was beaten so badly he remained in a vegetative state until he died at a hospital in October of that year, prosecutors said.

According to the evidence presented at trial, Williams would frequently hit and scream at the victim. Weeks prior to the fatal beating, the child's mother left the toddler with Williams and when Wilson returned, she found the victim limping with several injuries, prosecutors said.

On the day of the toddler's death, Wilson again left the child with her boyfriend. When she returned he had massive bruising throughout his body, including his head and groin area but she did not take the toddler to the hospital until the following afternoon, prosecutors added.

Wilson also tried to conceal the toddler's injuries with make-up and baby powder, according to witness testimony.

Case MA064056 was investigated by the Los Angeles County Sheriff's Department

Los Angeles District Attorney / Case MA064056 / August 21, 2017