76ee66d7_oobypedia__the_Scooby_Doo_Wiki__Motive_reason
[Suspect] Obsessive fan [Motive/reason] 
He was discovered on one of the camera shots of the audience to have taken out a camera, just before Madame Louisa went into her so-called trance.
Psychic Fiend Network - Scoobypedia, the Scooby-Doo Wiki
Motive/reason