A manhunt continues in Alabama for Desmonte Leonard, who police suspect killed three people at a party near the campus of the University of Auburn over the weekend. Monday afternoon, police thought they had trapped Leonard in a house. According to the Associated Press, police fired “tear gas, [used] thermal imaging and [sent] tactical teams on forays inside the house,” but came up empty.

While authorities were at the home Monday, Montgomery Mayor Todd Strange said they were going to scour the attic, air conditioning ducts and “every crevice” of the house until they were satisfied. They were drilling holes and tearing through pieces of the house. They vowed to repay the house’s owner or rebuild the structure.

Investigators said thermal imaging and other technology showed a person was in the attic area of the house and that they’d heard coughing and movement. But after midnight, they acknowledged that they hadn’t heard those noises for several hours.

Leonard wasn’t in the house. It appears nobody was. Police abruptly left around 2:25 am. [AP via Ritty]