Four Castle Park High School students were recently suspended after being accused of sexually assaulting another student.10News learned many parents are not happy with the South Bay school's administration because they feel they were kept in the dark about the incident."I haven't heard anything from the school, no notes passed out, nothing. It has kind of, yeah ... been pushed under the rug," said parent Brenda Moody.Moody said she was devastated when she heard what happened to a member of the Castle Park High football team."Very shocking, very disturbing and it's crazy, really crazy," Moody added.Neither the school nor the Sweetwater Union High School District is disputing what 10News has learned about the assault through viewers and Castle Park High parents.The incident reportedly happened outside the school's cafeteria after a practice last week, and one viewer told 10News the victim was told to "put a pencil up his rectum and it was hit further in by another student's binder.""I call it sickening, actually. That's what I'd call it," Moody said of the incident.School and district officials have refused to comment on the sexual assault, and in a statement to 10News' media partner the San Diego Union-Tribune, Castle Park High School Principal Virginia Sandoval-Johnson called the incident "horseplay that went too far."10News confirmed the hazing began as a harmless game of "keep-away" that ended in a serious crime."If what I heard happened is right, it's not horseplay; it's something totally different," said Victor Martinez, whose two children attend Castle Park High.10News learned the school conducted an investigation, as did the Chula Vista Police Department.The decision to file criminal charges against the four juveniles reportedly involved is now in the hands of the San Diego County District Attorney's Office.10News confirmed that one of the students involved only received a one-day suspension.