Man who stabbed brother in the heart found guilty of murder

Jurors heard how Byrne had watched a Celtic and Rangers game on TV that afternoon at his house with his partner, brother and a friend.

He described the atmosphere as “good… having a laugh” and said he went upstairs to his room at one point after the game, which finished 1-1.

Byrne told the court how he heard his brother shouting and arguing with someone on the phone downstairs.

He said he learned this was their mother, who appeared to be “defending” Paul’s ex-partner after they had an argument.

Byrne admitted he was “angry” at his mother for being upset and snatched the phone from his brother.

The pair ended up in the kitchen as Paul demanded his mobile back and the confrontation went from “verbal to physical”.

Byrne fatally stabbed Paul in what one witness described as a “frenzied” assault.

He claimed not to know exactly where he got the knife from.

His lawyer Thomas Ross asked Byrne if he could remember where he struck Paul or how many times, but he said he could not remember.

As Paul lay bleeding on the floor, Byrne jumped into his car and headed to the home of his other brother John before he was arrested.