Sources familiar with the investigation said Gomez was the alleged driver of a Chrysler minivan that was involved in the Tuesday night shooting in the 4300 block of South Ashland Avenue.
The suspected shooter — a passenger in the minivan who investigators believe used a military-style semi-automatic rifle to shoot the two Deering District tactical officers — remains at large.
It's unclear whether the shooter knew that the unmarked, covert van carried officers or he thought they were rival gang members, police said.
A source said the suspects are reputed members of the La Raza street gang, one of four Hispanic gangs believed to be responsible for about three dozen shootings tied to semi-automatic rifles in Back of the Yards and the nearby Brighton Park neighborhood since early 2016.