Dumas & Vaughn -- Sex Abuse Attorneys FORMER SAN MATEO HIGH SCHOOL STUDENT SUES FOR SEX ABUSE A former student of San Mateo High School filed a lawsuit today alleging claims for child sexual abuse by his former teacher and theater director, Roy L. Casstevens. Our client, Felix Montano, sued the San Mateo Union […] The post Former San Mateo High School Student Sues for Sex Abuse by Convicted Sex Offender Roy L. Casstevens appeared first on Dumas & Vaughn.