The elderly man was described as a supporter of the former president who was posting a political sign in his yard, according to police. Police also said the man displayed stickers and flags that were supportive of law enforcement. He was taken to the hospital in critical condition with serious injuries after the man on the ATV struck him, authorities said.

Investigators said they had identified a suspect in the case by Monday evening, and he had been linked to a total of three cases which were apparently “politically motivated”.

That man later contacted officers, told them he wanted to “confess a crime involving an ATV driver within the last 24 hours” and asked to be picked up, police said in a statement. When police arrived at the scene, they found a 22-year-old man dead from a self-inflicted gunshot wound.