Mark Howe , 21 , researched what weapons his TV icon used on victims . Sent text messages to friends saying how much he hated mum Tina . The 48-year-old tackled him over cannabis use at family home in Leicester . Found lying dead inside flat by her father-in-law Kris Wardle . Brian Wardle said he was devastated at death of his beloved wife . Brian Wardle and his father Brian appear on Britain 's Darkest Taboos , Sunday night at 9pm on CI .
Mark Howe , 21 , researched what weapons his TV icon used on victims . Sent text messages to friends saying how much he hated mum Tina . The 48-year-old tackled him over cannabis use at family home in Leicester . Found lying dead inside flat by her father-in-law Brian Wardle . Kris Wardle said he was devastated at death of his beloved wife . Kris Wardle and his father Brian appear on Britain 's Darkest Taboos , Sunday night at 9pm on CI .