Nevertheless, twenty miles from the Murrah Federal building, after the explosion, Mcveigh was stopped and detained by local authorities for not having a license plate on the vehicle he was driving and during the detainment, it was discovered he had a handgun loaded without a license to carry. Furthermore, Mcveigh was arrested for carrying a loaded handgun without a license and later investigations recovered Mcveigh fingerprints on a receipt for 2,000 pounds of ammonium nitrate, a basic explosive ingredient. Forensic analysts also located PETN, an ingredient of detonating cord, residues on the clothing of Mcveigh worn on the day of his arrest. Initially, investigators thought Arab extremist was responsible for the bombing until their investigation led them