8: Gary Allen - An evil double killer

Gary Allen murdered two women 21 years apart. Allen, 47, strangled Samantha Class, 29, in Hull in 1997 and Alena Grlakova, 38, in Rotherham in 2018. Join me in my latest episode where I take a look at the amazing work by the Police and how they caught this heinous individual. Learn more about your ad choices. Visit megaphone.fm/adchoices