Orvel Ronk, Quantico's antiterrorism program manager, instructs Quantico employees on how to react to an active shooter situation on Oct. 10, during one of several such trainings at Little Hall. - Orvel Ronk, Quantico's antiterrorism program manager, instructs Quantico employees on how to react to an active shooter situation on Oct. 10, during one of several such trainings at Little Hall.