Detectives urgently investigating what led to man’s sword rampage

Police ask to be given time to probe apparently random attack that left boy, 14, dead and four people wounded

Detectives are urgently investigating why a man armed with a sword went on a 22-minute rampage in east London, killing a 14-year-old boy and wounding four other people in an apparently random attack.

The teenager was fatally injured when the suspect swung at him with the 30cm-long weapon on Tuesday morning.