Captured: MMA fighter 'War Machine' in custody

A San Diego MMA fighter wanted for his alleged involvement in a violent domestic dispute in Las Vegas was taken into custody on Friday.

Jon 'War Machine' Koppenhaver was arrested at a hotel in Simi Valley, Calif. He was wanted in connection with the beating of his ex-girlfriend, porn star Christy Mack. The attack happened Aug. 8 in Las Vegas.

Mack posted graphic images of her injuries on Twitter. She suffered 18 broken bones and a ruptured liver. A man she was with also suffered serious injuries.

Koppenhaver disappeared after the attack with San Diego police, the U.S. Marshals Service and even Dog the Bounty Hunter hot on his tail. Here's how the arrest went down, according to the Simi Valley Police Department:

The United States Marshal's Service requested assistance from the Simi Valley Police Department to effect the arrest of Jonathan "War Machine" Koppenahver on 8/15/14 at approximately 1:45 P.M.

The United States Marshal possessed an arrest warrant for Koppenhaver stemming from an incident in Las Vegas Nevada last week. Koppenhaver was a former resident of Simi Valley and the Marshals investigation indicated he was possibly staying in Simi Valley, CA.

Further investigation revealed he was staying at the Extended Stay America Hotel located at 2498 Stearns Street in Simi Valley. Simi Valley Officers along side United States Marshals pinpointed his exact room and arrested him without incident.

Inside the room was a small quantity of cash and some pizza. The United States Marshal's Service turned Mr. Koppenhaver over to the Simi Valley Police Department for booking on his warrant from Nevada. He was transported to the Ventura County Jail.

Nicolle Blankenship saw the takedown. 

"They opened the door and they were like, 'Police, open the door!'" she said. "You heard the Taser come out and it was like 'zzzz' and I was like, 'Oh my god, we got to get out of here.' It was crazy."

The search for the MMA fighter included his home in San Diego. Neighbors at Ballpark Place Apartments were abuzz.

Cat Harrington told 10News, "Dog the Bounty Hunter was parked over here at Puptown. They were making phone calls and they were going after War Machine."

Andy Haynes added, "I see Dog the Bounty Hunter, and whoa! Man, why is he here? I see them go inside, brought out all his stuff. It was loud but cool at the same time because Dog the Bounty Hunter was here.'

Surveillance video helped convict him after a 2010 brawl at Thruster's Lounge in Pacific Beach. He was sentenced to a year in prison in connection with that incident.

Removed from his apartment Thursday were two snake cages, containing an Eastern Indigo snake and a rear-fanged mussurana, which is slightly venomous but legal.

The San Diego County Department of Animal Services has custody until the owner claims them. If untouched for 14 days, the snakes will probably go to the San Diego Zoo.

Over at Undisputed gym, where Koppenhaver has been training for the past year and a half, head boxing coach Joe Vargas shook his head.

"As of what I heard right now, it's heartbreaking," he said. "Love the kid, he knows that. All my fighters … you get a bond with them, you spend more time with these guys than your families."

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