Former RHS teacher Michael John Riley has been sentenced to 90 days in jail after pleading guilty to inappropriate sexual relations with a student in the 1980s who came forward last spring.

Riley was arrested in the spring of 2018 following a telephone sting set up by the Montgomery County Police Department (MCPD), tipped off by a former student who said she was inspired by the #MeToo movement.

Riley taught at RHS from 1981 to 1989, and he was working as the athletic director of the Charles E. Smith Jewish Day School at the time of his arrest. Riley entered a guilty plea to one count of sex abuse of a minor Oct. 15 in court and received 90 days in jail but will not have to register as a sex offender.

“Sex offender registries were not established until 1996, so the laws from the 1980s did not apply to that registry, and they are not retroactive,” Ramon Korionoff, spokesman for State Attorney John McCarthy said in an Oct. 17 WTOP article.