Miami-Dade police say Elijah LaFrance was found with a gunshot wound after officers responded to a ShotSpotter alert at a home Saturday night.
"My officer swiftly picked up the child from the floor, put him in his police car and drove him to the hospital, and unfortunately the child is deceased," Miami-Dade Police Department Director Alfredo Ramirez III told WSVN.
Crime Stoppers offered a $5,000 reward in the case, to which Miami-Dade Police approved an additional $5,000. The Florida Sheriffs Association also offered $5,000, bringing the total reward to $15,000.
The shooting also wounded a 21-year-old woman, who suffered non-life-threatening injuries.
Miami-Dade police said it appears Elijah and the woman were attending another child’s birthday when the shooting occurred.
Police said they have yet to identify a suspect, who fled after the shooting.
It’s unclear whether the two victims were the intended target.
The party was taking place at an Airbnb rental, which was booked for the party, WSVN reports. The news station reports the shooting occurred following an altercation outside the rental.
Neighbors said they heard up to 30 rounds being fired.
"We will do everything we can to bring this murderer to justice & we must stand together to demand an end to this cycle of tragedy," tweeted Miami-Dade Mayor Daniella Levine Cava.