Mom, boyfriend arrested in beating death of 4-month-old boy in Illinois
WQAD / Rock Island County
Tanda Allee and Mateo Williams have both been charged with first-degree murder.

via WQAD:

ROCK ISLAND, Ill. (WQAD) -- On March 10, Rock Island Police responded to a home on 12th Avenue regarding an ambulance assist call that reported an unresponsive infant.

A 4-month-old boy was found to be deceased. An autopsy done on March 11 determined the cause of death was blunt-force trauma to the skull, among other significant injuries.

On March 13, Rock Island Police detectives arrested Austin's mother, 23-year-old Tanda Allee and her boyfriend, 20-year-old Mateo Williams. They have both been charged with first-degree murder and were held in Rock Island County Jail.

The infant's older sibling was removed from the home and placed into foster care.

MORE: Rock Island police arrest parent and boyfriend after finding dead infant - WQAD