Authorities are continuing to look for an inmate serving a murder sentence who escaped from the county jail on a sheriff's motorcycle, a deputy sheriff said.

Kendall Northern, 26, fled on a Yamaha 650 that he had previously repaired for the department, said Sgt. Travis Mitchell of the Duchesne County sheriff's office. He said Northern had access to the storage shed where the motorcycle was kept and officials believe he picked a lock to open a gate where he escaped about 4 p.m. Sunday."He is adept at picking locks so we're making some assumptions," Mitchell said. Northern was transferred from the Utah State Prison and had been serving time in the Duchesne County Jail for more than two years, he said.

Northern was serving a sentence for killing and robbing a taxi driver in 1980. He is described as 6 feet 4 inches tall, weighing 290 pounds and having brown hair and blue eyes.

In July, the Utah Board of Pardons denied Northern parole and scheduled another hearing for May 1990. During that hearing, he told board members he was "out of control" when the killing occurred, but said he had changed.

"I've grown up. I'm not the same person I was at that time," he said.

He is serving two consecutive five-year-to-life terms for guilty pleas to second-degree murder and aggravated robbery. During his trial, he testified that co-defendant Robert Alan Phillips killed the taxi driver. Phillips is serving a life sentence.