DALLAS (CBSDFW.COM) — Police have arrested one suspect and are looking for another in the shooting that left an innocent bystander dead in downtown Dallas yesterday.

Dallas officers arrested and charged 21-year-old Derrick Florence Jr. with manslaughter after shooting and killing an innocent bystander, 55-year-old Johnny Glover.

Derrick Florence Jr. mugshot (Photo courtesy: Dallas Police Department)

Homicide detectives have identified the second shooter, and he’s still at-large.

At approximately 6:30 p.m. June 12, officers received a report of shots fired near the intersection of Griffin and Elm Street, near the Crowne Plaza Hotel.

Police said in a news conference Friday that two groups broke out on the corner of Elm and Lamar Street and the confrontation continued eastbound on Elm. When the groups reached the corner of Elm and Griffin, shots were exchanged from both groups, killing Glover as he waited at a nearby bus stop.

Florence remains in the Dallas County Jail in lieu of a $50,000 bond.

WATCH: The Dallas Police Department’s News Conference