Police have carried out a series of raids, ahead of this weekend's Notting Hill Carnival, in an attempt to combat potential trouble makers. One hundred and twelve people have been arrested for offences including robbery, theft and drugs possession.
Officers have also seized several firearms, £4, 000 in cash and a Porshe. The focus has been to target gangs and other criminals intent on causing trouble at the carnival.
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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.