Six people were killed and 38 others were injured in a mass shooting at a Fourth of July parade in Highland Park, Illinois.
A person of interest in the deadly attack is behind bars and has been identified as Robert Bobby E. Crimo III, 22.
Police believe Crimo climbed onto the rooftop of a business and used a high-powered rifle to open fire on the parade.
Authorities have also said the attack appeared to be random and intentional.
Crimo has yet to be formally charged in the mass shooting.
Five of the six people who were killed were found dead at the scene, and the sixth victim died at a hospital.
