he should have booked an airbnb using fake id instead of using a hostel with cctv. he shouldn't have went to get a candy bar immediately before the killing and threw it in the trash with his dna all over it. he should have switched outfits and burned the clothing used during the killing at the first opportunity.  he should have disposed of the gun at the first opportunity in a place where it would be difficult to and tie to the killing (like over a bridge into a river in another state)
United Kingdom