A truly tragic story here of how a 86 year old guy mistook his accelerator for the brake and killed 10 people in Santa Monica USA. And I guess this sort of thing is going to be more frequent as the population ages and have to use cars as they live on their own. A smaller version of this happened here in Cambridge UK a few years ago when a child in a pram and its mother (I think) were killed in Kings Parade . When the driver did the same thing when trying to stop coming out of Bene't Street.