Keith Little convicted of first degree murder

A Suburban Hospital worker who went on trial for allegedly stabbing his supervisor more than 70 times on New Year's Day after receiving a bad performance review was found guilty of first degree murder.

Keith D. Little, 49, of Lanham, Md., was accused of killing 40-year-old Roosevelt Brockington Jr. It is the second time Little has been accused of killing a co-worker.

Brockington had recently given Little a poor performance review that would deny him a raise, police said.

Investigators believe that was the motive for the attack.