PASADENA, Texas -- A police walk-through of a crime scene is standard investigative procedure, but none has garnered as much attention in Houston as the one Pasadena detective Matt Bruegger did with Joe Horn.

In a video released by Pasadena police, Bruegger is on camera interviewing Horn after the Pasadena homeowner gunned down two suspected burglars in his yard in November.

“It’s important that everybody that watches this is able to gather all of the information,” Bruegger said.

It is the same information the detective gathered came from a man he described as “distraught” and someone who was honestly attempting to lay out he facts of what had happened when he shot the two men. The audio of the shooting was recorded as Horn talked to a Pasadena police dispatcher during a 911 call.

“The person that’s in the 911 tape is not the same person that’s in the walk-through,” said Bruegger.

Horn convincingly explained how frightened he was and why he felt he needed to walk outside with a weapon and why he opened fire, according to Bruegger.

“I was telling these people 'don’t move,'” Horn is shown telling Bruegger on the video. “And all the sudden they jumped and I shot them. I was here by myself.”

The detective said the shooting was never a clear-cut crime.

“This was not something that was black or white (or) easily defined as a criminal act or not a criminal act,” said Bruegger.

Crime or not, it touched off a huge controversy. Activists lashed out at the grand jury’s decision not to indict Horn while neighbors and others have rallied and call Horn a hero.

There was also criticism directed at Bruegger and other Pasadena detectives by some who believe if Horn had been black and the men he killed white, things would have turned out much differently.

“I can sit here and honestly say, that person wouldn’t have been arrested that night either,” said Bruegger.

The detective said the tape of the walk-through and interviews with Horn at the Pasadena police station were given to the Harris County District Attorney’s Office.

Bruegger said that he testified before the grand jury and is confident they reviewed all the facts before deciding not to charge Horn.

The police interviews were released on the same day that Horn -- for the first time -- was publicly defending his actions.

In interviews with the Chronicle and radio talk show host Michael Berry, Horn repeated his assertion that he was defending himself and that he doesn’t consider himself a hero.