Mother of 20-year-old knocked out cold by Eritrean thug asylum seeker with single punch urges police to track him down before he can attack again

A 20-year-old was knocked out by an Eritrean asylum seeker with a single punch, and the victim's mother is urging police to track down the attacker before he can strike again. The incident involved a physical altercation. The mother is seeking justice for her child.