We were at the social security administration office in Phoenix Arizona on Tatum and bell roads ,when we caught footage of the security guard abusing the senior citizen,he shoved him out the door without his walker and the senior fell to the sidewalk you could hear his head hit the sidewalk and the Security was using bad language the whole time.The ambulance came for the senior and later we learned that he had thrown out the caretaker as well.The senior was not doing anything to aggravate the guard he was just shuffling along my friend offered him a ride and told him to sit and wait for her to get the car when the guard went off.The guard works for paragon systems a company hired by homeland security.