A Miami man has pleaded guilty to a tragic crime. Alberto Sierra took responsibility for killing his wife and her two young daughters. The victims were just 8 and 4 years old at the time of their deaths.

The guilty plea came more than a decade after the killings took place. Notably, Sierra did not have a plea deal with prosecutors when he entered his guilty plea. Further details about the case are available from CBS4 Miami, the source of this information.