The guy is possibly from Cardiff...

Police search Cardiff address
Posted at
16:47
Police say officers are also searching a residential address in the Cardiff area.
Deputy Assistant Commissioner Neil Basu said officers looking into the Finsbury Park attack were "working fast to know the full details of how and why this took place".
The force said it would deploy more uniformed police officers, while local and senior police officers will regularly meet faith leaders.
He said: "All the victims were from the Muslim community and we will be deploying extra police patrols to reassure the public, especially those observing Ramadan."
"We are conscious there are a number of events planned across London and the rest of the UK and we continue to ensure that security plans are robust," he added.