Thatiya Terdputham and Sarud Seehaverachart have been found guilty of murdering good samaritan Luke Mitchell in April 2009.

Mr Mitchell, 29, was stabbed to death outside a convenience store in Brunswick.

• Letters link to accused killers
• Grandmother, grandson dead

One of three men accused, Teparat Tepsut, pleaded guilty to murder earlier this year, but his co-accused, Thatiya Terdputham and Sarud Seehaverachart, stood trial after pleading not guilty.

Jury in trial of two Thai men return verdicts of guilty of murder Luke Mitchell.

— Supreme Court of Vic (@SCVSupremeCourt) September 9, 2015

Guilty verdict – Luke Mitchell’s parents cry, as does Daniella Mitchell who witnessed the stabbing. Brother Shane also watching on.

— Karen Michael (@KarenHuf) September 9, 2015

Mr Mitchell had stepped in to protect his sister-in-law after she tried to stop another man being assaulted on Sydney Road.

The men then turned their attention to him and they fought in the street.

The court was earlier told after Mitchell left the scene, Seehaverachart and Terdputham were angry and followed his group to a convenience store, where they set upon him in the car park with knives.

He died several hours later of his injuries.

Mr Mitchell’s parents were in court and cried as the verdict was handed down.

“They were a frighteningly efficient and effective team,” prosecutor Andrew Tinney SC said of the three men during the trial.

“They were willing to kill a decent man for no other reason other than they were angry.”

Terdputham, 40, and Seehaverachart, 32, who showed no reaction as the verdict was delivered, will be sentenced at a later date.

– with ABC