A West Valley man was booked into jail Monday in connection with the beating death of his wife last month.

Salt Lake police detectives arrested Gary Mabe, 37, Monday after questioning him several times. "He's been our prime suspect all along," said Lt. Jim Bell.On Dec. 5, a co-worker discovered the severely-beaten body of Carol Mabe, 45, 3791 Granger Drive, lying on the floor of her cubicle at Timesaver Industrial, 1515 S. Pioneer Road (2350 West). Several officers told the Deseret News it was one of the worst beatings they had ever seen.

Bell said detectives had some doubts about the suspect's story during an interview Friday. Monday morning, the suspect called detectives and asked to meet with them again.

Carol Mabe routinely went to work between 5:30 and 6 a.m. to perform janitorial tasks and computer work for the business. Her husband routinely drove her to work and often helped her before he had to go to his own job, Bell said. The man told police that he took his wife to work early Dec. 5 and stayed to help her for a while.

Even after interviewing the suspect, police said they do not yet have a motive for the killing.

The couple had been married for 12 or 13 years. Mabe had a $5,000 life insurance policy, but police do not know if that was part of any motive.

"We haven't ruled anything out. There's got to be a motive that he's not talking about," Bell said.

When officers arrived on the day of the murder, several cubicles appeared to have been ransacked and Mabe's purse had been dumped. An inventory showed that nothing had been taken, however, and detectives believe the man made the mess to make it appear as if someone had killed her during a burglary.

Mabe was booked into the Salt Lake County Jail Monday for investigation of criminal homicide. Detectives were scheduled to discuss the case with the Salt Lake County attorney's office later this week.