Ashley Foster has been convicted of the manslaughter of Alan Greaves, but there was confusion in court when the clerk only asked the jury foreman whether he was guilty of murder.
When the foreman said "not guilty" there were celebrations from Foster's family.
But as Mr Greaves's widow Maureen looked shocked and confused, the jury foreman, who had already been asked to sit, shouted "but guilty of manslaughter".
At this point Foster's girlfriend Natalie Evers burst into tears and ran from the court screaming.
More top news
Through the day, most of the cloud should break up to leave fine conditions for many with spells of sunshine.
The Eiffel Tower in Paris was plunged into darkness, with the Burj Khalifa in Dubia emblazoned with the Union Jack.
The major party leaders' campaigns for the General Election will remain suspended on Wednesday following the Manchester terror attack.