Boy, 7, Fatally Beats Infant Half-Sister

A 7-year-old boy beat his baby half-sister to death with his fists, feet and a two-by-four because he was jealous of the attention the 7-month-old girl was receiving and because she would not stop crying, Tampa police said.

The state attorney’s office is deciding whether to file charges against the boy in an attack that rattled even veteran homicide detectives.

The unidentified boy was not taken into custody and was living with his mother while prosecutors decided whether to charge him.

“The veteran detectives who worked on this case have never seen a case with someone as young as a 7-year-old show so much violence and so little remorse,” Tampa police spokeswoman Laura McElroy said.