Teens' injuries allegedly tell story of grocer's death

Van Viet Truong died after allegedly being set upon by a group of youths near his shop. (HANDOUT/BRIMBANK CITY COUNCIL)

Injuries a group of teenagers sustained after allegedly assaulting a good Samaritan will be used to identify their roles in his death.

Grocer Van Viet Truong, 60, died from serious head injuries after he was allegedly set upon by a group of teenagers while trying to help a fellow retailer under attack in Melbourne's west.