An accused child murderer is now in custody in the city of Miami.

Cops announcing the arrest of 42-year-old Miguel Ruiz Lobo for the death of 11-year-old, Martha Guzman, who died last month.

Guzman was found dead in her Little Havana home with her throat slashed.

Detectives say DNA underneath the girl's fingernails link Lobo to the crime.