A Mahopac man has been arrested for promoting a sexual performance by a child.  The Putnam County Sheriff's Office launched an investigation in March after a tip was received from the Internet Crimes Against Children Task Force.  Images and videos of child sexual abuse material were being shared online from a residence in Carmel.  A search warrant was carried out in May, assisted by electronic storage detection K9 Hannah. A forensic examination recovered evidence and identified the 36-year old man has the suspect.  He was charged with 4 counts of Promoting an Obscene Sexual Performance by a Child, arraigned and released for a future court appearance.