The two teenagers accused of killing Arun Kumar panicked after the blade they had intended to use as a scare tactic led to the Auckland dairy owner bleeding to death on the floor of his shop, a court has been told.
A picture of synthetic drug and cannabis use has also been painted in the hours before Mr Kumar was killed at the Railside Dairy on June 10 last year.
The teenagers' trial has entered its second week in the High Court at Auckland. A 14-year-old boy is charged with murder, while his 13-year-old co-accused faces a charge of manslaughter.
The pair, who have name suppression, also face counts of assault with intent to rob.
The jury has been played videos of two police interviews with a 14-year-old boy who followed the teens to the dairy and back to the older defendant's home as they fled.