Four men have been arrested and charged in connection with the mass shooting that wounded 13 at a Chicago Park Thursday evening.

According to police, Byron Champ, 21 and Tabari Young, 22 fired into a crowd as Brad Jett, 22, acted as a watchman.

From The Los Angeles Times:

Police said the motive for the mass shooting appears to be retaliation for a shooting hours earlier that grazed one of alleged gunmen, police said. Police said Kewane Gatewood, 20, is believed to have supplied the gun Young used, which McCarthy described as “military-grade.” The four are charged with attempted murder and battery with a firearm.

Read more at The Los Angeles Times

The shooting took place at Cornell Park located in Chicago’s Back of the Yards neighborhood.

3-year-old Deonta Howard was among those wounded during the shooting. He is recovering from the bullet that entered his ear and exited his cheek.

No bond has been set for the four men charged with the crime.

We will keep updating you on this developing story.

Thoughts on the shooting?

Sound off below!