This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

Please enable Javascript to watch this video

OKLAHOMA CITY - A standoff that lasted nearly 10 hours in northwest Oklahoma City ended with a murder suspect nowhere to be found.

On Tuesday, murder charges were filed against 21-year-old William Proctor.

Proctor is accused in a 2013 shooting out of Tulsa that left one person dead.

Around 11 p.m. Tuesday evening, Oklahoma City police attempted to serve Proctor an arrest warrant.

They believed he was staying at a home near N.W. 28th and May.

When officers went to the house to make an arrest, noises could be heard inside the home, but no one answered the door.

For nearly 10 hours, police stood outside the home, thinking Proctor was held up inside.

SWAT teams and bomb squads were called in to assist.

When police officers finally entered the home, they didn't find the suspect.

They only found animals.

"There were dogs inside the house," MSgt. Gary Knight, with Oklahoma City Police Dept, said. "They never made contact with the person."

"We're always going to err on the side of caution and do what's safest for everybody involved, rather than just storm into a house and face the possible tragic consequences," MSgt. Knight continued.

Although police used a lot of resources, hoping to catch the murder suspect, neighbors support the amount of manpower called to the scene.

"They do what they have to do. I have a lot of respect for law enforcement," Charlie Maupin said. "I hope they catch the guy, wherever he is."

Proctor is still on the loose.

Police say his accomplice in the shooting was arrested in 2014. He is set to go on trial for murder this fall.

If you know of Proctor's whereabouts, please call police.