Four people allegedly involved in an attempted sexual assault and harassment of a 17-year-old at Fallston Volunteer Fire Company have been arrested, the Harford County Sheriff’s Office said Tuesday. Andrew Burkins, 21, of the 900 block of Winters Court in Bel Air, John Hefner, 20, of the 2400 block of Burham Drive in Fallston, and Colby Ogrysko, 19, of the 1900 block of Pleasantville Road in Forest Hill, are each charged with attempted first- and second-degree rape, third- and fourth-degree sex offense, second-degree assault, harassment and two counts of conspiracy to commit third-degree sex offense, according to online court records.