AURORA | A 24-year-old man faces first-degree murder charges after police accused him of killing a 4-year-old boy during some kind of physical altercation inside an east central Aurora apartment.
Alexander Martinez-Armstrong is being held at the Arapahoe County jail, currently without bond.

Police and rescuers were called about 10 p.m. Saturday to an apartment in the 14100 block of East Tennessee Avenue after receiving a report of a child who was unconscious and not breathing.
“When officers arrived at the scene, Aurora Fire Rescue paramedics were performing life-saving actions on the boy,” Aurora police spokesperson Joe Moylan said in a statement. “Responding officers observed the boy had significant injuries.”
The boy was taken to a local hospital, where he later died from his injuries, Moylan said.
A preliminary investigation at the apartment prompted police to arrest Martinez-Armstrong, police said.
“Martinez-Armstrong acknowledged striking the boy,” Moylan said.
Martinez-Armstrong is scheduled for his first court appearance Monday at 9:30 a.m. at an Arapahoe County court.
Police said anyone with information can call Metro Denver Crime Stoppers at 720-913-7867. Tipsters can remain anonymous and still be eligible for a reward of up to $2,000, police said.

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