Victims not yet formally identified; it is not confirmed Janzen wrote post

Janzen apparently killed himself during police standoff in one of homes

They said killings involved relatives in two houses in British Columbia

A Canadian father has apparently confessed to shooting dead his teenage daughter, wife, and sister at two separate homes in a chilling Facebook post, writing: 'Now my family is pain-free and in heaven.'

In the online post, Randy Janzen seemingly writes that his torment over his 19-year-old daughter Emily's debilitating migraines led him to shoot her in the head at a house in British Columbia.

He adds that he then gunned down his wife, Laurel, 'because a mother should never have [to] hear the news her baby has died', and his sister, Shelly, so that she did not 'have to live with this shame'.

Shortly after the post was uploaded to the social network on Thursday, investigators confirmed a multiple homicide involving relatives had taken place at two different residences in the province.

Scroll down for Facebook 'confession' and video

'Triple homicide': Randy Janzen (right) has apparently confessed to shooting dead his teenage daughter, Emily (center), wife, Laurel (left), and sister, Shelly, at two homes in Canada in a chilling Facebook post

Chilling: In the online post (pictured), Janzen seemingly writes that his torment over by his 19-year-old daughter's debilitating migraines has led him to fatally shoot her in the head at a house in British Columbia

Following the shootings, police surrounded one of the homes and tried to speak to a man inside, officials said. They then fired gas grenades into the house, which caught fire and exploded into flames.

Although the man and the victims are yet to be formally identified, Janzen owned the home that exploded on Llanberis Way in Rosedale. Neighbors said a family of three lived at the property.

Janzen is believed to have killed himself during the police standoff, according to The Province newspaper. It is not yet confirmed that he wrote the post that appeared on his Facebook page.

On Friday, Integrated Homicide Investigation Team spokeswoman, Sergeant Stephanie Ashton, said: 'It is believed that several members of one family including the suspect are deceased.'

She said that one body had been located in the house that did not explode, situated in Langely. But she added she could not confirm the number of victims at the crime scene at 10003 Llanberis Way.

All of the victims are yet to be formally identified, she said.

Couple: In the post, Janzen adds that he gunned down his wife (seen with Janzen) 'because a mother should never have [to] hear the news her baby has died', and his sister so she did not 'have to live with this shame'

Burned: Shortly after the post was uploaded to the social network on Thursday, investigators confirmed a multiple homicide involving relatives had taken place. Following the shootings, police surrounded one of the two residences and fired distraction devices into it. The house shortly exploded into flames (pictured)

Police: Although the man and the victims are yet to be formally identified, Janzen owned the home that exploded on Llanberis Way in Rosedale. Neighbors said a family of three lived at the house (seen far left)

Janzen's Facebook post was uploaded at 12.19pm on Thursday - nearly three hours before Langley authorities became aware that an Agassiz man had possibly harmed his family members in the area.

In the disturbing post, Janzen apparently writes: '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.'

Crime scene: RCMP officers are pictured conferring as they stand outside the burned property in Rosedale

'Victims': Janzen is believed to have killed himself during the police standoff. It is not yet confirmed that he wrote the post that appeared on his Facebook page.Above, Emily is pictured with her mother, Laurel

On Friday, an Integrated Homicide Investigation Team spokeswoman said: 'It’s believed that several members of one family including the suspect are deceased.' Above, Emily (left) and Janzen (right) in Facebook photos

He adds: 'Then I shot Laurel because a mother should never have [to] hear the news her baby has died. Then a couple of days later my sister Shelly because I did not want her to have to live with this shame I have caused all alone. Now my family is pain free (sic) and in heaven.'

Jazen seemingly concludes the post with the words: '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.'

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 Randy Janzen, Facebook

At around 3pm on Thursday, police learned from a tip that a man had possibly killed his relatives and rushed to the Langley property, where someone was found dead inside, CBC reported.

According to neighbors, Janzen's sister Shelly lived at the house.

A second tip sparked concerns about the property that was reportedly owned by Janzen in Llanberis Way, east of Chilliwack, where neighbors apparently heard a series of gunshots followed by 'a loud bang'.

A SWAT team surrounded the house and a standoff ensued. Around four hours later, officials fired distraction devices into the house, which quickly set ablaze and exploded, The Province reported.

'There were two smoke bombs,' one female neighbor told CBC on Friday. 'I guess the drapes caught on fire and it was just a matter of minutes before the whole place went up.'

Residents were apparently ask to stay indoors during the incident. After entering the house, police found several bodies. They said they believed one of them belonged to the suspect in the killings.

Relatives: Emily and her mother, Laurel, are both believed to have been shot dead by Janzen on Thursday

Paying tribute: On Friday morning, the Chilliwack School of Performing Arts posted a heartbreaking public message (pictured) on its Facebook page about Emily, describing her as 'incomparable' former student

When asked about Janzen's apparent Facebook confession, Ashton told The Province: 'We are aware of the Facebook page and we are considering that as part of our investigation.'

On Friday morning, the Chilliwack School of Performing Arts posted a heartbreaking public message on its Facebook page about Emily, describing her as 'incomparable' former student.

It said: 'Today we celebrate the incomparable Emily Janzen. A former student and instructor, forever a part of our CSOPA family. We will fondly remember her bright smile, beautiful voice and amazing spirit. She will be greatly missed. Our condolences go out to all her family and friends.'