A family have paid tribute to the "easy-going, happy-go-lucky soul" who became the victim of what was called a "frenzied murder" in south Wales.
An annual memorial day is planned in Bargoed for Dean Shorney
Wayne Royston, 35, is starting a life sentence of 20 years for killing Dean Shorney, 21, in a park in Bargoed, Rhymney Valley, in April.
Mr Shorney's family said the murder would be "etched in all our minds forever."
Royston was jailed at Cardiff Crown Court after a four week trial.
Mr Shorney was described by the prosecution as a "happy-go lucky, trusting man with the mind of a child".
His family said after the case: "Each one of us feels, in our own way, anger, guilt and sadness that we couldn't be there for him when he needed us most.
"What Dean went through that night should never happen to anyone."
They said no words could describe their feelings for Royston, who was found guilty half a an hour after the jury retired to consider its verdict.
"Wayne Royston has been found guilty of his murder, and rightly so," the statement added.
"It has been extremely difficult over the last four weeks to listen to the evidence in court, but we feel that it was so overwhelming that the jury could only ever come to one decision.
"The fact that they did so very quickly reinforces that belief."
They added: "Dean was a wonderful person who is and will continue to be sorely missed by his family and all those who knew him.
"He was an easy-going, happy-go-lucky soul who, as you have heard, liked the simple things in life and wouldn't hurt a fly.
"He had a wicked sense of humour and, in his own mind, thought he had an excellent singing voice.
"We would regularly laugh with Dean singing at the top of his voice whilst listening to his favourite music, oblivious to the fact that we could all hear him."
The family also thanked police for working "tirelessly" on the case.
Det Supt Bryan Wilson of Gwent Police said: "We are grateful that this dangerous individual has been removed from society.
"I would particularly like to thank and praise Dean's family for their support and resilience throughout the investigation.
"We know that this conviction does not bring their son, grandson and brother back, and our thoughts are with them at this very difficult time."
Mr Wilson said that Mr Shorney was a "well-loved member of the Bargoed community, who enjoyed the simple things in life such as day trips, eating out with his family and occasionally sipping a cold beer."
A memorial day in his honour organised by his local rugby club attracted 1,000 people and there were plans to make it an annual event.