Dad-of-one Randy Janzen allegedly killed his daughter, wife and sister in a horrific murdering spree before taking his own life.
The Canadian then shockingly wrote about his crimes on Facebook.
It is believed that Janzen claimed he killed his 19-year-old daughter because she suffered from migraines, chillingly revealing that she was now ‘migraine free’
He then killed his wife Laurel as "a mother should never have to hear the news her baby has died."
Janzen then murdered his sister to ’spare her the shame’ of his crimes.
He allegedly wrote on Facebook: "I have done some of the worst things I could have ever imagined a person doing. First, to do with my dear sweet, loving daughter Emily.
"The best little girl two parents could ever hope for... Emily excelled at so many things but slowly had to stop almost everything because of the migraines.
"I don't think anyone really knew how much pain Emily was in on a daily basis and the severe depression that these migraines caused her.
"Emily had tried everything to get better but nothing seemed to help her. I took a gun and shot her in the head and now she is migraine free and floating in the clouds on a sunny afternoon."
"I am taking full responsibility for my actions of these murders. So sorry to anyone I have hurt. Rest in peace my little family. Love Daddio xoxo."
Janzen’s body was found next to the remains of his family.
The family’s local police in Canada said: "It is believed that several members of one family including the suspect are deceased."