A mum has been crushed to death by a falling tree in front of her horrified son and his Boy Scout troop.
The teenager, along with other shocked onlookers, desperately tried to heave the log off the woman, but she was sadly declared dead at the scene.
The group, which included the tree's victim, her son, several scouts and other parents, had been hiking in Rancho San Antonio Park, Cupertino, California, US, when the disaster struck.
