In exchange for his pleas, Assistant District Attorney Kevin Taheri will recommend at sentencing that Griswold serve concurrent prison terms on the three counts.
Investigator Taylor Courtney said the case started in August when a woman approached his office with information about a possible sexual assault of a relative.
That victim decided to come forward because she reportedly knew Griswold frequently spent time near a seven-year-old child, and she did not want Griswold to abuse that child as well.