Kirk Hammet practiced riffs devised by Dave Mustaine on his way to New York and then the recording group “Kill‘ Em all “. Dave’s final words to James and Lars: “Don’t touch my things.” “My thing,” Dave meant was not the guitar and the amp, but the song. However, all four songs in the demo “No life till lether” went to Kill ‘Em All and became the classic of thrash metal: Four horsemen (originally called Mechanix), Jump in the fire, Phantom lord, and Metal Militia. In the credit, Dave’s name is pushed to the bottom. Meanwhile, the first thing Dave saw on the bus on the way home was the words “… the arsenal megadeath can’t be rid no matter what …” Muttering in his head “Megadeth”, Dave wrote the latter. to “Set the world afire”.