The son of murder victim Tony Marrocco said he can never forgive his father’s killer for cutting short his time with his dad.
Adrian had served in the RAF since he was 17 but moved back home shortly after his dad’s death.
Adrian, now 42, said: “I moved in with mum and I would parade around the house every night until they found him [Clifton].
“I was in defence mode looking after my mum.
“No one knew who the murderer was or where he was so I did an hourly shift guarding the house, keeping an eye on what was going on around the street.”
Adrian believes Clifton carried out the murders after a plan to steal one of Tony’s cars fell through.
He said: “He had bought a car off my dad before, and at the time my dad was on his own at work so he let him take it for a test drive on his own.
“What I think he did was go back to the garage thinking he could test another car on his own and then take off in it.
“But because Paul was at work at the time he had to go for the road test with him.
“I don’t think he had a particular motive; he just wanted to get away and the only reason he targeted my dad was to drive away in a car.
“Something must have happened on the test drive and after he killed Paul he knew that dad would know who he was.”
Adrian sat through Clifton’s trial, which saw the judge recommend he was never released.
He said: “I detest him. Prison isn’t enough for people like that. He should have hanged for what he did.”
Tony, 49, lived in Chestnut Avenue in Bolton-le-Sands with his wife Geraldine.
He had moved to England from Lenola, Italy, in 1965, working in Croydon and Carlisle before meeting Geraldine and settling in Bolton-le-Sands.
The couple had been due to celebrate their 25th wedding anniversary just months after Tony’s death.
Geraldine still lives in the same house and, although she chose to never marry again, she has a partner and is happy, Adrian said.
Adrian is a trained mechanic like his father, and would often go down to the garage with Tony after school to learn more about the trade.
After his dad’s business closed – ironically, Tony had been due to leave the motor trade in just another six months – Adrian left the RAF and opened up his own car sales firm on White Lund, but left it last year to take up property development.
Adrian now lives close to his mum in Monkswell Drive, Bolton-le-Sands, with his fiancee Lisamarie Graveson.
The former Morecambe High pupil has fond memories of the time he had with his father. He said: “I have a lot of excellent memories. You couldn’t ask for a better dad.
“We still miss him loads and I still get upset every now and again to this day when something reminds me of him.
“He was taken away from me and I have total resentment for him [Clifton].
“Anyone who could do something like he did is a complete waste to society and I don’t think he should ever get out.
“He took my dad away and I will never know what kind of relationship I would have had with him.
“Maybe we would have gone into business together, who knows?
“I will never forgive him for that.”