The family of a boy who was protected from an attempted robbery by a security guard who was then allegedly murdered have said they wish to honour his “bravery and kindness”.

Aidan Becker, 22, died after he came to the aid of a 14-year-old schoolboy at Mernda Station in Melbourne’s north-east on Friday night, with four teenagers allegedly stabbing him with machetes.

Becker died at the scene, and the family of the boy have expressed their sorrow at his tragic death after he protected their son.

Aidan Becker, left, has been remembered as a "beautiful boy".Aidan Becker, left, has been remembered as a “beautiful boy”. (Nine)

“We are deeply saddened by this heartbreaking loss,” they said in a statement shared to 9news.

“He showed extraordinary courage and compassion in risking his life to save our son.”

“We hold your family in our thoughts and prayers.”

All four teenagers alleged to be involved in Becker’s stabbing have now been charged with murder and armed robbery.

A family friend of the Beckers has called for action, not words, from the Victorian government.

Emad, a co-worker and friend of Aidan Becker’s mother, Natalie, recalled the moment she called him to reveal what happened to her son.

Emad said he was watching the football when he received a call he admitted “traumatised” him.

“By the time I went to call her, I received a message [saying], ‘Call me, they killed my son,’ he revealed to 3AW’s Jacqui Felgate.

“When I rang her and then I saw her, you just visualise, ‘what would you do in this situation?’

Aidan Becker, 22, was allegedly stabbed to death after intervening to help a 14-year-old who was being robbed by four teenagers.Emad wants Becker’s tragic death to be a catalyst for change. (Nine)

“This wasn’t a gang versus gang attack. This is a beautiful boy who went to the aid to try to save a 14-year-old boy.”

The Victorian Government is attempting to crack down on crime, including by giving harsher sentences to children who commit violent crimes in an initiative called “Adult Crime, Adult Time”.

Emad urged the government to act.

“There’s an opportunity now to lead by example and not just use it as a slogan,” he said.

“What people want is for tragedies like this to lead to conversations… I’m not sure what the policy will become, but I just think whatever we’re doing at the moment isn’t working.”