A family of five was found dead inside their Yukon, Oklahoma, home Monday after what's believed to be a murder-suicide executed by the father, police said

A 10-year-old Oklahoma boy woke up alone on Monday morning and found himself the subject of a waking nightmare: while he was sleeping, his entire family had been slain by a father who then turned the gun on himself.

A 10-year-old boy woke up Monday in his home and found his family massacred, four of whom were fatally shot by the child’s father who then killed himself, Oklahoma City police said Tuesday.

Police say that the youngster discovered a ‘massacre’ at the family home in Oklahoma City and that at least one of the child victims was shot dead in their bed