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Authorities said the gun used in the killing of Charlie Kirk may be a decades-old, untraceable rifle, authorities have said.

Prosecutors and officials identified the gun as a Mauser Model 98 .30-06 caliber bolt-action rifle, a type originally manufactured in Germany for military use during both World Wars. It may predate U.S. laws enacted in 1968 following President John F. Kennedy’s assassination, which required firearms to carry serial numbers or other identifying marks — making it harder for law enforcement to trace.

Authorities said the firearm belonged to the grandfather of Tyler Robinson, the 22-year-old Utah man accused of assassinating Kirk . Police allege Robinson may have deliberately chosen the rifle becaus

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