NEW : Britain 's prime minister laments the ` ` terrible loss of ... the British people '' Two of the four adults killed , one a cyclist , were shot in the head , a witness says . A girl suffered fractures to her skull and was shot in the shoulder , he adds . A younger girl was found alive and unharmed in the house where three adults were killed .
NEW : Britain 's prime minister laments the `` terrible killings of ... the British family '' Three of the four adults killed , one a cyclist , were shot in the head , a prosecutor says . A girl suffered fractures to her skull and was shot in the shoulder , he adds . A younger girl was found alive and unharmed in the car where three adults were killed .