A Luton man who plotted massacres at busy London tourist hotspots has been convicted of terror offences.
It comes a year after he was cleared of a sword attack on police outside Buckingham Palace.
The court heard how Mohiussunnath Chowdhury was driven by "dreams of martyrdom" as he planned gun, knife and van onslaughts on targets including Madame Tussauds, the gay Pride parade and an open-top sightseeing bus last year.
- Watch an interview with Commander Richard Smith, Met Police Counter Terrorism Command
The 28-year-old chicken shop worker was caught out as he spoke of his plans to undercover police who were posing as like-minded extremists during a five month surveillance operation.
In preparation he lifted weights, practised stabbing and rehearsed beheading techniques as well as booking shooting range training and trying to acquire a real gun, his trial at Woolwich Crown Court heard.
Chowdhury, who was cleared in December 2018 of slashing police with a sword outside the Queen's London residence while shouting "Allahu Akbar", had bragged about deceiving the jury in that trial.
He was found guilty of engaging in conduct in preparation of terrorist acts, collecting information likely to be useful to someone preparing an act of terrorism and disseminating terrorist publications.
The second charge related to a document titled 'guidance for doing just terror operations' on his phone which included instructions on how to kill people with knives.
His sister Sneha Chowdhury, 25, cried as she was convicted of one count of failing to disclose information about acts of terrorism and cleared of another count of the same charge.
Jurors deliberated for eight hours and 39 minutes before returning their verdicts.