A former worker at Suburban Hospital in Bethesda was sentenced Monday to life without the chance of parole for sneaking into the hospital’s boiler room basement and stabbing his boss 72 times with a 12-inch knife.

Keith Little, 50, was convicted in December in the New Year’s Day 2011 killing of Roosevelt Brockington Jr., 40, of Lusby. Prosecutors said that Little hated Brockington and was angry Brockington had given him a poor performance review.

During Monday’s hearing, Little continued to profess his innocence, saying he had been railroaded by authorities. He said he would appeal.

But Montgomery Circuit Court Judge Marielsa Bernard said evidence in the case showed that Little “butchered” Brockington.

Bernard said the comments from Brockington’s family members showed he was a good man.

“This is a man who loved people,” she said.