“He was an entirely innocent victim who was simply enjoying a day out with a friend.
“He could have been anyone’s father, son or brother.
“I am convinced there are witnesses out there who are yet to come forward and I would appeal for them to contact us as they may have vital evidence to help us bring those responsible for this sickening attack to justice.”
Witnesses or anyone with information are asked to call the Harlow Major Investigation Room on 01279 621802.
Alternatively, call Crimestoppers anonymously on 0800 555111 or online at www.crimestoppers-uk.org.