article_snippet.sent: Byfield was arrested days after the knife attack when Byfield stopped a PCSO in Walthamstow High Street (pictured) saying Byfield was wanted by the police.
article_snippet.sent: Byfield had been staying with a friend in Hackney in the days leading up to the killing but was thrown out on August 31 last year.
article_snippet.sent: Byfield was captured on CCTV travelling from Hackney to Walthamstow in the early morning of September 1.
article_snippet.sent: The murder weapons were recovered from the scene and Byfield was quickly identified as a suspect, police said.