Police said he was trying to tunnel his way into the building Thursday.
Officers found a hole he'd been digging behind the toilet seat cover dispenser in the /*museum*/'s outside bathroom.
"He would have had to break through the side of the elevator," said Linda Kepford the museum director.
The director said the plan was very elaborate. She said a trail of dust on the bathroom floor tipped off a caretaker.
A K-9 team was called in and a dog actually found Liascos after biting him.
Police said nothing was taken from the museum.