(Cincinnati) - Joseph Tucker, 38, has admitted to one count of murder for killing security guard Richard Campbell at the Hilton Netherland Plaza on December 7, 2012.

Tucker originally said he didn't remember what happened, but he later told the judge he was drunk and high when he attacked Campbell in an emergency stairwell. In exchange for pleading guilty, his charges of burglary, robbery, and aggravated murder were dropped.

Campbell was killed on his 58th birthday.