Watch this archive video footage of forensic officers searching near the Regent's Canal lock during their investigation into the death of Gemma McCluskie.
More top news
A man has died after being attacked outside Bethnal Green tube station in front of horrified onlookers
A number of teenagers playing the popular phone game have been targeted by armed robbers in a London park
The victims were playing the popular game in Whittington Park in Holloway on Tuesday night, when three males suspects approached them.