Outside a parade of shops in Hayes, west London, photos of a young woman in a teal jumper stand propped on a wall among flowers and candles. Older women in saris, heads covered, stand nearby and murmur prayers; younger women in T-shirts look at the pictures silently, perhaps seeing a reflection of themselves. It feels as though it could have been any of us. It was just nearby that Kirandeep Kaur, 24, was stabbed to death in her bed on 12 July, w…