Manchester’s Parklife are offering a £20,000 reward for information about the killer of Robert Hart, who died at the festival earlier this month.

In a post on the festival’s Facebook page, the organisers write:

Tomorrow marks a week since the sad passing of Robert Hart and our thoughts continue to be with his family who have been going through unthinkable pain since then.

From the start we believed that, out of the 70,000 people at the festival, there must have been one person who knows who was responsible for this cowardly act. After careful consultation with GMP, who have in turn been in extremely close communication with the family, we are now able to offer £20,000 for information which leads the authorities to identifying the attacker and convicting him for the crime.

The response from the public in support of the family has been overwhelming so far. Please, if you have any information that can help, please call on 0161 856 9283

We will not stop until the offender is caught. RIP Robert Hart.

Sacha, Sam, Jon and The Parklife Team.

Anyone with information can contact the incident room direct on 0161 856 9283 or email the incident room on mit.syndicate8@gmp.police.uk with any relevant footage. You can also contact Crimestoppers, anonymously, on 0800 555 111.

Hart, 26 years old from Macclesfield, left the Manchester festival in critical condition after suffering what police described as a “brutal assault”. It later emerged that he was knocked unconscious after trying to protect his girlfriend from being hit by an inflatable toy, and he died in hospital on June 12.

Police have released an E-Fit image of the attacker, below. They have described him as “a mixed race male, aged in his late 20s and around 6ft 1in tall. He has a muscular build and short, dark hair which was shaved at the sides. He was also wearing shorts and a blue, bomber-style jacket with the letter ‘A’ in white on the front.”