CENTRAL ISLIP - The suspect in the death of a 4-year-old Amityville boy was arraigned this afternoon on second-degree murder charges.

Prosecutors say 31-year-old Jonathan Thompson admitted to punching 4-year-old Adonis Reed twice, causing significant internal bleeding and multiple lacerations.

About two dozen of Adonis' family members were in court today to support his mother, 21-year-old Kiara Daniels, of Wyandanch, who sobbed throughout the proceedings. The little boy reportedly lived in Amityville with his godmother and her boyfriend, Thompson.

Authorities responded to a 911 call Wednesday afternoon in which the caller said an ambulance was required for a child at a Ketcham Avenue apartment. When police got to the home, they say they found Reed unconscious in the living room with bruises on his body. There were no adults present when first responders arrived.

Officials say the little boy's 6-year-old sister is now in custody of child protective services.

Thompson has previously served time for a violent felony, grand larceny and identity theft. He is being held without bail.

The case will go before a grand jury next week.