TUCSON, Ariz. (AP) -- A man has been charged with first-degree murder and four counts of child abuse in the death of a 4-year-old boy and the child's mother also has been charged with two counts of child abuse.

Alejandro Miguel Romero, 25, originally was charged with child abuse and manslaughter in connection with the Jan. 27 death of Fabian Silva from blunt-force trauma to the head.

The new indictment filed last week replace the old charges with seven counts against Romero - the murder and child abuse charges as well aggravated assault against a minor and possession of marijuana.

Child Protective Services first became involved in late October after the boy was brought to the hospital for an intense headache and other symptoms, documents show.

At Tucson Medical Center, doctors discovered a number of bruises on Silva's body as well as a slight brain hemorrhage. Two doctors examining the boy said in their notes they suspected abuse.

But the boy's mother, Marina Baker, told a CPS worker many of the bruises came from rough play with Fabian's older brother and Fabian had also recently fallen down the stairs and hit his head while he was being watched by Romero.

Authorities said Romero had been watching Silva alone when he was fatally hurt and told police the boy had again fallen down the stairs.

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Information from: Arizona Daily Star, http://www.azstarnet.com

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