A Miami-Dade judge denied bond Tuesday for the Miami man accused in the first-degree murder of 11-year-old Martha Guzman.


Miguel Ruiz Lobo, 42, appeared in court following his arrest for stabbing the girl to death and trying to make it look like a suicide.


Police say Guzman's mother had been dating Lobo and the child had convinced the woman to break up with him.


Investigators say they believe that was the motive for the killing. 





(Photo: Miami-Dade Corrections)