40-year old Eric Sophie had quite an alluring hook for an after-school program at the Ethical Community Charter School on Broadway in Jersey City.
Kids would spend a couple of hours with a man who calls himself on his MySpace page, "The Lego Master".
It was an opportunity for kids to learn how to build things with the popular blocks, from an expert.
But police say, Sophie took advantage of that opportunity, and abused at least 4 children in his care.
The kids involved are between the ages of 8 and 5.
For each victim, Sophie is charged with Endangering the Welfare of a Child, Child Abuse, and Sexual Assault by Contact, which is a felony.
The school informed parents last week after Sophie was arrested.
It says he has been relieved of his duties.
Sophie apparently has no record of abuse.
He is in police custody, as Special Victims investigators dig deeper into what may have been happening at his after school program.
If you have any information on this case you are asked to contact the Hudson County Prosecutor's Office at (201) 915-1234.