Ummariyat Mirza and his wife-to-be argued regularly about which one of them was more devoted to the jihadi cause.
The device was packed with more than a kilogram of shrapnel.
The Royal Air Force confirmed two jets tailed the flight.
"I never think it's helpful for anyone to speculate," Prime Minister Theresa May said.
The president was quick to condemn the attack on a London subway train.
Passengers post images of a bucket as the suspected cause of the blast after a reported fireball in west London.
"The French had their army ready, the Dutch had their navy ready, meanwhile Theresa May watched the cricket," said one lawmaker.
U.S. authorities indicted Sheikh Abdullah el-Faisal after he tried to help an undercover NYPD agent travel to Syria.
That wasn't the only gap in the nation's political knowledge.
Winter, a 'middle-aged, middle-class bloke from Middle England,' decided at 52 to spend summers sailing because 'if you live on an island, at some stage you should sail around it.'
The online chat took place in August last year using a secure messaging app.
The three sought to attack police or a military target in Britain.
We could see women play a greater role in attack plots in the West, writes Devorah Margolin.
New report calls for a public inquiry into Riyadh's role in exporting "bigoted Wahhabi ideology."
The jihadi asked a British spy for a nail bomb he wished to use on a packed crowd in London.
Without the oxygen of publicity, the attacker is just that: a killer with a car and a knife. The lone wolf needs the pack as much as the pack needs the lone wolf.
Monday's attack targeted worshippers from an institution with a proud history of fighting violent extremism.
"This is what they want. This is what they are aiming for."