A five-year-old boy has been shot and killed by his 18-month-old cousin who was playing with a loaded gun. The toddler is believed to have found the gun laying around at his uncle’s house in Detroit, Michigan, before picking it up and firing a single bullet, police have said. The accident at around 9.30 am local time yesterday and the five-year-old’s father, aged 27-year-old, was detained by police in connection with the incident. The boys’ father, grandmother, and another child, a one-year-old, were all inside the property when the shooting happened. Detroit Police...