Ceglia paid a $25,000 fine in Texas, and received a 10-year suspended sentence. He then moved to NY, where he started his business relationship with Zuckerberg.
Terry Connors, Ceglia's lawyer, declined comment "because I do not have any knowledge about it at this time."
While it is unclear if Ceglia was a regular user, or a seller, if he was a user the drugs could have a lasting effect on his brain, says Dr. Mario Ciani, chair of Mercy College's Natural Science Department.
"What happens is if people are using mushrooms on a regular basis, sometimes they have a reduced ability to differentiate between reality and fantasy," said Ciani. "Their experience on the mushrooms sort of overlaps into their daily activities. Particularly if they use them on a regular basis."