Senior British political figures joined faith and community leaders on Tuesday to commemorate the anniversary of an attack by a far-right extremist who drove a van into Muslim worshippers leaving a London mosque.

Darren Osborne, 48, ploughed his rental van into a crowd leaving Ramadan prayers in Finsbury Park, north London, in the early hours of June 19 last year, killing 51-year-old father of four Makram Ali and injuring 12 others, two seriously.

Authorities said it was the fourth deadly terrorism incident in Britain last year, following three Islamist attacks which killed 35 people.

On Tuesday, the British capital’s mayor Sadiq Khan was joined by the opposition Labour leader Jeremy Corbyn and interior minister Sajid Javid and figures from the local community for a minute’s silence outside Islington Town Hall.

“It’s a time to support and pray for the victims,” said Toufik Kacimi, the chief executive of the Muslim Welfare House whose worshippers were targeted in the attack.

“It’s also a time to reflect on the outstanding response from the community. We believe the terrorists will never win and this is shared by the British people of this country as seen by their messages of peace, love and tranquillity.”

Osborne, who was jailed for at least 43 years in February, had become obsessed with Muslims after watching a BBC TV drama about a child sex abuse scandal involving British Pakistani men.

He told his trial he had initially wanted to kill Corbyn and Khan, a Muslim, at a march in central London but had been thwarted by road closures.

“Last year’s cowardly attack which targeted innocent worshippers leaving Finsbury Park Mosque was an attack on all of us,” Prime Minister Theresa May said in a statement. “As with all acts of terrorism, the intention was to divide us. But we will not let this happen.”

A man who drove a van into Muslim worshippers outside a mosque last June was motivated by deadly Islamist attacks in Britain and an obsession with a television account of Muslim men who targeted white girls, a London court heard on Monday.

Darren Osborne, 48, also lambasted politicians, calling London Mayor Sadiq Khan a disgrace and Labour Party leader Jeremy Corbyn a “terrorist sympathiser”, prosecutor Jonathan Rees said, quoting from a note he said Osborne left in the van.

The note described Muslim men as rapists, “feral” and “in-bred” and when he was detained after the attack, Osborne said: “At least I had a go”, Rees told Woolwich Crown Court.

Osborne is accused of murdering Makram Ali, 51, a father of six who came to Britain from Bangladesh aged 10, and the attempted murder of other worshippers as they left a mosque in Finsbury Park in north London after late-night Ramadan prayers.

Osborne has denied the accusations.

“The evidence establishes that the defendant was trying to kill as many of the group as possible,” Rees told jurors. “The prosecution say that the note and the comments he made after his detention establish that this act of extreme violence was, indeed, an act of terrorism, designed to influence government and intimidate the Muslim community.”

The incident occurred just weeks after three Islamists drove a van into pedestrians on London Bridge before going on a knife rampage, killing eight.

That attack came the month after a suicide bombing at a pop concert in Manchester killed 22 people. In March another Islamic State-inspired attacker killed five people by driving a car into passers-by on London’s Westminster Bridge and then stabbing to death a police officer in the grounds of parliament.

Rees said Osborne hired a van and drove to London from his home in Cardiff. After a plan to attack an anti-Israel march failed, Osborne drove around seeking alternative targets.

He is accused of ramming the crowd at Finsbury Park as worshippers helped Ali who he had earlier become unwell.

The court was told Osborne, who had never previously openly expressed racist opinions, had become obsessed with Muslims in the weeks before the attack after watching a BBC television drama “Three Girls”, based on true stories of victims of child sex gangs comprised mainly of British Pakistani men.

Rees said Osborne searched online for material related to the show, some of which was connected to far-right groups and Jayda Fransen, deputy leader of Britain First.

One of Fransen’s messages was re-tweeted by U.S. President Donald Trump in November.

Two days before the attack, Osborne told a serving soldier in a pub in Cardiff: “I’m going to kill all the Muslims”, the jurors were told.

Rees said Osborne’s former partner Sarah Andrews described the father of four as a loner and a functioning alcoholic with an unpredictable temperament who took medication for depression.

“With the benefit of hindsight, she describes him as a ticking time-bomb,” the prosecutor said.

The trial, which is expected to last two weeks, continues.