Sahayb Abu of Dagenham prepared to strike last summer but was arrested after discussing guns with an undercover police officer.
Steven Gallant was jailed for life with a minimum term of 17 years in 2005 for the murder of a firefighter in Hull.
Father Of London Bridge Victim Jack Merritt Accuses Boris Johnson Of Using His Death To 'Make Political Capital'
The PM reiterated his belief that it was "wrong" for convicted terrorist Khan to have been released automatically after eight years in prison.
An inquest has opened into the London Bridge attack that left eight people dead and many more injured. The three attackers drove into pedestrians on the bridge before launching knife attacks in nearby Borough Market.
CCTV footage has been released of the attackers at a hotel in Nairobi, Kenya. Several gunmen are seen entering the complex, where they killed at least fourteen people and injured many others. They are suspected members of the extremist group al-Shabaab.
A hotel in Nairobi, Kenya, has been attacked by the extremist group al-Shabab, killing at least one person and injuring many others. There was an explosion and heavy gunfire. Emergency services rushed to the scene to escort crowds away from the scene.
A manhunt is underway in France after a gunman killed at least three people and injured several others at a Christmas market in Strasbourg. Police have named the suspected gunman as Chérif Chekatt, who was known to intelligence services as a potential security risk. The motive hasn't been confirmed. Over 300 security agents are still trying to track down the shooter as France has raised its security threat level to the highest possible.
Survivors described waiting 14 months for support.
'Nothing prepares you for a scene like that.'
Local officials had put the death toll at over 200 on Sunday without giving a firm number following the blasts that struck two busy junctions on Saturday.