Inside an Exorcism: Expert shares terrifying details

PITTSBURGH, Pennsylvania -- After a dramatic spike in demonic manifestations and possessions around the world, and especially in the United States, a Peritus of Demonology and Exorcism from Pittsburgh shares terrifying and surreal details about what really happens inside a solemn exorcism.

Adam Blai, who has a master's degree in psychology, and is a former skeptic, says the truth is far more horrific.

"These creatures," said Adam, "They’re not human!"

Blai now trains priests nationally and has participated in over 100 solemn exorcism internationally.

He says there are four clear signs of possession and tips to avoid demonic encounters that everyone should know.  Watch above for Blai's tips.

**Tune in to Fox 8 News next Monday at 10 p.m. for Part 2 of Inside an Exorcism**