A man who was seen on surveillance video last week shooting and killing an armed suspect attempting to rob a Houston taqueria was questioned by police Monday. 

Houston police detectives questioned the 46-year-old man and, after consultation with the Harris County District Attorney’s Office, it was determined the shooting will be referred to a grand jury, police said. 

The man’s identity has not been released because he has not been arrested or charged, police said. The grand jury will decide the man’s charges once all the evidence is presented. 

Police referred all further questions to the District Attorney Kim Ogg's office, which was unavailable for comment.

TEXAS THIEF SEEN ON CAMERA LEAPING THROUGH CAR WINDOW TO STEAL CASH

Houston police officers were dispatched to the Ranchito #4 Taqueria in southwest Houston last Thursday after an armed customer shot and killed an armed robber who’d entered the establishment and demanded valuables from customers at gunpoint.

The video and witness reports show the suspect – later identified as 30-year-old Eric Eugene Washington – wearing a black ski mask entering the restaurant and pointing his pistol at patrons and demanding their money.

HOUSTON ARMED ROBBERY SUSPECT SHOT DEAD BY ARMED CUSTOMER, POLICE LOOKING TO QUESTION SHOOTER

As the suspect was gathering money from patrons, the armed customer can be seen standing up as the suspect walks by him and firing his gun at the suspect multiple times.

The armed customer, described by Houston police as a White or Hispanic male, fired at least nine shots at the suspect who dropped to the ground and died. The armed customer fired multiple shots, including one at the suspect's head, after the suspect had dropped to the ground. 

The armed customer collected the stolen money from the body of the suspect and returned it to patrons before fleeing the scene.

Fox News’ Andrew Mark Miller contributed to this report.