A blue plaque will be unveiled later to commemorate the musician and founder of the Official Monster Raving Loony Party, David 'Screaming Lord' Sutch.
The unveiling at Ace Café in Wembley today is arranged to coincide with what would have been Mr Sutch's 72nd birthday.
Sutch was the first political figure to campaign for Votes at 18, commercial radio stations, Pet Passports and all day pub opening.
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"All it takes is for somebody to see me - and I could just die, just like that. I could want to go to the shop and not come home."
Before the killing, Peters searched the internet for "serial killers", "treatment of child killers in prison" and "premeditated murder".
Arriva Rail North, Greater Anglia and South Western Railway are all affected.