(CBS DETROIT) – A 21-year-old Pontiac man has been charged in a double homicide that happened on July 4.

Dazon Mathis was arraigned Wednesday, July 7 and is charged with two counts each of open murder – a life offense – and possession of a firearm in the commission of a felony. A conviction on the firearm charge carries a mandatory two-year prison term.

READ MORE: Michigan Reports 7,856 New COVID-19 Cases, 56 Deaths

Mathis is accused of fatally shooting Christopher Cintron-Mateo, 30, and Jonathon Alvarado-Santiago, 29, both of Pontiac.

Credit: Oakland County Sheriff’s Office

The incident happened shortly after 1 p.m. Sunday outside a home in the 500 block of Valencia Drive.

READ MORE: Whitmer Raises $3.1M For Reelection Campaign In 3 Months

Deputies were sent to the home on the report of multiple gunshots fired. The victims were found lying in the street near a Chrysler 300 vehicle, officials say.

Investigators believe the shooting was the result of an altercation between the victims and Mathis.

© 2021 CBS Broadcasting Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.

MORE NEWS: Detroit's Shinola Hotel To Host Halloween Party To Celebrate The Release Of Clue: The Shinola Hotel Edition