Guillermo Riol was found guilty as charged of three counts of Failure to Register as a Sexual
Offender following a three-day trial in Collier County. He was sentenced immediately to 78
months in prison.
In 2018, a detective with the Collier County Sheriff’s Office was doing a residence check to be
sure the defendant lived where he claimed as required as part of his sex offender status. The
original crime that resulted in Riol being designated a sex offender happened in 1999 in another
The detective found that the defendant had changed jobs and there were multiple vehicles at the
residence that were not registered. The detective instructed him to register and update everything
with the Collier County Sheriff’s Office. The defendant did not register all of the vehicles and
then failed to do his regular 6-month registration as a sex offender.
The defendant then moved and failed to notify the Collier County Sheriff’s Office of a change in
his address. All of those failures to register led to his arrest.
Assistant State Attorney N. Stowe Heiderscheit and Assistant State Attorney Deborah
Cunningham prosecuted the case.
State Attorney’s Office