Houston police have identified the man suspected of shooting and killing Houston PD sergeant Sean Rios.

On Tuesday, 24-year-old Robert Soliz was pulled over on the Katy Freeway after narcotics officers recognized him as the suspected shooter. They arrested him and restrained him with Sgt. Rios' handcuffs, KHOU reports. Police are still looking for a person of interest who was seen on surveillance cameras talking with Soliz in a parking lot.

"That person is someone of extreme interest in the murder of Sgt. Rios and we are going to find you so you might as well turn yourself in," Houston Police Chief Art Acevedo said.

Acevedo said investigators believe Rios was on his way to work at Bush Intercontinental Airport when he responded to reports of shots fired between the drivers of a Mercedes and a white truck.

Rios was mortally wounded in an exchange of fire with the driver of the Mercedes, police say.