At the victims funeral, at the Holy Trinity Parish Church, Fr Brendan Smyth said: "Danny's death was a horrific one, where his life was snuffed out in the blink of an eye, from behind him his killer set themselves up as judge, jury and executioner."
Last Monday night's shooting of Dan Murray, 55, was the fourth gun attack in the city in four days.
Mr Murray was brought to his death by a bogus fast food order, detectives said.
He was known to police and had survived a previous murder attempt.
He had been dispatched in his black Ford Focus to deliver food to a house in the Lady Street area of West Belfast.
The father-of-six was shot in the head when he drove into Lady Street.
Fr Smyth went on and said the shooter had no concern for the victim's children or the impact this murder would have upon them.
He said: "They have been added to the very long list of those who suffer at the hands of those who have no care for justice, those who seek to settle things by the barrel of a gun.
"And they say we live in a more civilised and peaceful time in our city's, our country's history, I think not."
He said the murderer or murderers believed life was "worthless".
"This is the second time in as many months that I have had to stand at the door of this church and received the remains of someone who was murdered."
He finished: "How long must we wait before the lessons are learnt, that whatsoever you do to the least of these my brothers and sisters you do to me?"
He said they faced eternal punishment.
