Authorities have charged a second suspect involved in the shooting at Lone Star College's north campus.
Court documents show deputies are searching for 22-year-old Trey Foster.
Foster's friend, 22-year-old Carlton Berry, is already charged and in custody.
Investigators say on Tuesday, Berry and Foster got into a fight with 25-year-old Jody Neal.
At least 10 shots were fired. Neal, Berry and a maintenance worker standing nearby were shot.
Authorities are also searching for the gun used in the shooting. Prosecutors say they are not sure which of the two suspects may have been the shooter in the incident, but both of them are facing charges,