Man arrested in Utah sentenced after Facebook helps solve 1996 cold case

Dallas • The brother-in-law of a Dallas woman raped and slain more than two decades ago while her infant daughter slept in a playpen nearby has pleaded guilty, bringing an end to a case that was re-opened when that daughter as an adult went to police to push for an investigation.

Victor Serrano, 40, pleaded guilty to murder Thursday in the death of Manuela Dominguez after DNA from the body connected him to the crime scene, The Dallas Morning News reported . He has been sentenced to 30 years in prison for the killing

Dominguez's husband, Manuel Serrano, found her dead in bed, next to their infant daughter sleeping in a playpen. He told authorities that Victor Serrano, his brother, was the only…