Hired on at DFW Airport DPS in 2001. He transferred to the SWAT/Solo Motors Section in 2002. Marc served as the SWAT Team Commander from 2016-2020. He holds a Master Peace Officer certificate, TCOLE instructor, is a Firearms Instructor, Patrol Rifle Instructor, Less Lethal Instructor, Use of Force Instructor, Force Science certified, and ALERRT Instructor. Marc is currently assigned to the Training Division as the Rangemaster.