A residential counselor at a group home in Parkville has been charged with abusing two vulnerable adults who were in his care, and it's not the first time that's happened.Baltimore County police said Gary Lee Toft, 63, of Baltimore, was charged with vulnerable adult abuse, perverted practice and numerous sex offenses in a case connected to a group home in the 4100 block of Taylor Avenue.Detectives said they learned about the allegations of abuse in September. Investigators discovered that Toft had abused two men in his care over several months.No other details about the case have been revealed.Toft is currently being held at Central Booking in Baltimore because of previous sex offense and perverted practice charges against him, according to court records.  In that case, Toft was charged in September with sexually assaulting a 24-year-old developmentally disabled man at Creative Options, where Toft also worked as a residential counselor.Anyone with information about the Baltimore County case or other possible incidents involving Toft should call police at 410-307-2020.Because city police said Toft admitted to preying upon and assaulting multiple victims, specifically young men, police created a hotline for any additional victims to call and report any assaults that Toft may have committed. That number is 410-396-2269.