Much of Araya 's lyrical content is about serial killers , a subject he finds interesting ; his first lyrical contribution was the vampire-themed track `` At Dawn They Sleep '' from 1985 's `` Hell Awaits '' .
Much of Araya 's lyrical content is about serial killers , a subject he finds interesting , first making his lyrical contribution to 1985 's `` Hell Awaits '' with the track `` At Dawn They Sleep '' .