By Ginger Shepherd/KTVL.com

WHITE CITY, Ore. -- Jackson County Sheriff Mike Winters is not making excuses about Monday's escape.

"We own this," he said during a press conference Tuesday.

Bradley William Monical, 42, escaped from the Jackson County Jail around 10 p.m. Monday.

Winters said Monical was in the recreation area for his recreation time when the escape happened. The man was able to create an 18-by-18 inch square in a wire mesh net.

Once the hole was complete, he climbed through and jumped to a nearby tree. He then jumped down and ran off.

Winters said they believe he had assistance from other inmates. At the time, there were three other inmates in the recreation area.

"It was a group effort to some degree," he said.

It is unclear how long Monical had been working on the hole, but the material is a heavy duty wire. Winters believe he would have had stand on an inmates shoulders in order to complete it.

Monical has been in the Jackson County Jail since August 2011. He is serving 22 years on a robbery charge from Coos County. He is at the Jackson County jail because he is awaiting trial in an Ashland bank robbery.

The sheriff said Monical has a history of attempting escape. The inmate attempted to escape custody from the Department of Corrections when he was transferred to Jackson County. Sheriff officials were unaware of that information when they took custody of Monical.

"He's a smart guy," Witners said. "It's obvious; he has put efforts into other escapes."

In Winters's 10 year tenure as sheriff, there has not been a jail escape.

"It won't happen again," Winters told reporters. "I'm embarrassed."

The sheriff says his agency will do an internal review and correct the mistakes there were made. His office has already removed the trees from around the jail.

At the time of the escape, an officer was watching the prisoners in the recreation area. However, that officer was also tasked with observing other areas on the floor.

Winters doesn't know if Monical will hurt anyone. He doesn't have a history of hurting people during his crimes.

"Crime is a vehicle to support himself instead of working," Winters said. However, he doesn't know what Monical will do if he is backed into a corner.

Residents are advised to call 911 if they see him or their local police department.

He was last seen in dark green jail clothes, slip-on canvas shoes. He was wearing glasses. He is a white male that is 5 feet 7 inches tall with brown eyes and short brown hair.Winters on jail escape: I'm embarrassed