A 28-year-old man was sentenced today to life in prison without the possibility of parole for the slayings of his then-girlfriend's grandparents in 2010, the Los Angeles County District Attorney's Office announced.

Roldolfo Lopez was found guilty in December 2016 of two counts of first-degree murder. A jury also found true a special circumstance allegation of multiple murders.

Deputy District Attorney Scott McPheron of the Family Violence Division prosecuted the case.

Lopez and Sophia Cristo, now 21, fatally stabbed her grandparents, 71-year-old Jack Bezner, and his wife Susan, 64, on Aug. 9, 2010. Lopez and Cristo, who was 14 years old at the time of the murders, then fled to Texas.

In March 2015, Cristo was found guilty of first-degree murder and the special circumstance allegations of lying in wait and multiple murders were found to be true. Jurors also found true that Cristo personally used a knife to stab Susan Bezner.

Cristo faces life in prison when she is scheduled to be sentenced on July 18. She was ineligible for the death penalty because of her age at the time of the murders.

Case BA361170 was investigated by the Los Angeles County Sheriff's Department.

Los Angeles County District Attorney / Case BA361170 / June 30, 2017