(AP) — The sniper who assassinated Charlie Kirk is believed to have jumped off a roof and fled into a neighborhood after firing one shot and has not been identified, authorities said Thursday in disclosing they have recovered a high-powered, bolt-action rifle they believe was used in the attack and are reviewing video footage of the person they believe was responsible.

The shooter appeared to be of college age and blended in on the university campus where Kirk was killed Wednesday, said Beau Mason, the commissioner of the Utah Department of Public Safety. It remained unclear how far the shooter has traveled, though law enforcement officials say nearby woods where the rifle was found have been secured.

Even as law enforcement officials revealed new details about an attack they called targ

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