The security services have discovered that Westminster killer Khalid Masood carried out the attack as revenge for Western military intervention in the Middle East.
According to The Independent the last message by Masood on the WhatsApp messaging service has been uncovered by the security agencies.
In the message, sent just minutes before he began the rampage in which five people died and 50 were injured, the 52-year-old declared that he was waging jihad in revenge against the West.
The person who received the message has been extensively questioned, but freed after the police and MI5 concluded that he was not part of a plot and had no prior knowledge of what was unfolding on March 22.
Masood, who was born in Kent, had come to the notice of the security services for being on the fringes of “Islamist extremism” in the past, but he was not seen as a threat.
Investigators have established that he carried out a reconnaissance journey to central London four days before the attack; he did not discuss the trip with anyone else.
The vast majority of Muslims who have conducted terror attacks against Britain, or who have plotted to do so, have cited foreign policy as their prime motivation.