britain's most evil killers - series 2 ep 6 - the railway killers (david mulcahy) Published 3 years ago • 1.2K plays • Length 2:42 Download video MP4 Download video MP3 Similar videos 1:33 the remains of 25 cromwell street | fred and rose west the real story with trevor mcdonald | itv 0:44 sky crime - ‘britain’s most evil killers’ showreel. 7:52 rhys jones' ki||er sean mercer 'fears little boy blue documentary