Agents from the Federal Bureau of Investigation arrived Friday at the home of Tyler Robinson, the suspected shooter connected to the assassination of Charlie Kirk, where they seized his vehicle and towed it away.

The 22-year-old Utah man was arrested and booked on murder charges in the killing of Kirk. Authorities said Friday that Robinson held deep disdain for the conservative activist’s provocative viewpoints and indicated to a family member that he was responsible for the shooting.

The arrest marked a major break in a case that shocked the country and raised fresh alarms about political violence in a deeply polarized United States.

Robinson’s arrest late Thursday capped a frenetic day-and-a-half search that just hours earlier seemed stuck when authorities pleaded for tips and leads from the public.

The assassination while Kirk was speaking at Utah Valley University reverberated across the country because of his outsize influence in conservative circles, his close connections with President Donald Trump and because of the questions it raised about the escalating toll of political violence that has spanned the ideological spectrum.

AP video by Ty O'Neil