TUCSON (KVOA) - First responders deal with traumatic situations on a regular basis. Following Sunday's deadly shooting involving two AMR EMTs on Tucson's south side, what happens when their job puts their own lives in danger? News 4 Tucson went to AMR headquarters to see how they were helping their crews during this difficult time. They say a team of specialists are on-site to help with mental health, along with a therapy dog. Zona, seen roaming the halls of AMR headquarters, is a certified therapy dog. She helps provide comfort in crisis situations, ranging from mass causality incidents to natural disasters.