"This incident has been recorded as a life saved as there were no other boats in the area at the time and I don’t think anyone was actually aware he was in the water.
He was incredibly fortunate in that respect.
We still don’t know how he came to be in the water but due to an unusual twist of fate we managed to avoid one more fatality on the River Thames last night.
That first person who was threatening to jump from London Bridge probably has no idea that, all things considered, he saved another man’s life."
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Delays, diversions and cancellations caused chaos to services on South West Trains which were hit by signal failures in south west London.
During the attack Ione Wells' head was smashed against the pavement, her attacked grabbed at her chest with such force that it tore her bra.
The 17-year-old pushed her to the ground and smashed her head against the pavement, before grabbing at her chest.