Las Vegas, NV (KTNV) -- The man accused of beating a five-month-old child is now being charged with murder.
Police said the baby had severe head injuries after being beaten by 31-year-old Anthony Casey.
Casey was arrested after a short standoff at his residence near Hacienda Avenue and Lindell Road last week.
He was facing child abuse charges but will now be tried for the murder because the child has died.
Five-month-old Kaiden Chamberlain was declared brain dead and died on Aug. 31, two days after he was taken to Sunrise Hospital & Medical Center.
Anthony, the ex-boyfriend and roommate of the child's mother, was babysitting the boy while his mother was at work.
Anthony was unable to explain to police how the child was injured while in his care.