A vigil was held today to remember a teenager shot dead in Clapton a week ago.
Friends and family honoured 19-year-old Joseph Burke-Monerville, and say they are standing together against violence.
Meanwhile police have again been appealing for witnesses to come forward.
Phil Bayles was at the vigil:
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In a wide-ranging Peston on Sunday interview, he said Parliament security needs reviewing and the PM's counter-terror strategy is flawed.
The terror attack carried out by Khalid Masood at Westminster that left four people dead lasted less than two minutes say police.
Two knives were found at the scene in Islington, North London, and the suspects fled on foot before being arrested.