Four teenagers in the UK have been found guilty in the Birmingham Youth Court after fracturing a 70-year-old woman's skull with rocks.
Horrifying footage from inside the taxi shows the moment the youths hurled the stones.
They smash through the window, sending glass splinters flying, and hammering into the elderly woman's head.
She's briefly knocked out while her husband frantically attempts to help her.
The teenagers, aged 15, 16, 16 and 17, will be sentenced on February 3rd.