Some of the bizarre social media posts made by an alleged triple murderer have been revealed.

The last social media posts made by a man – who is accused of murdering his mother, father and younger brother in an alleged horror attack inside their home – have been revealed.

Jacky Amazing Feng, 32, is charged with three counts of murder and one count of attempted murder after emergency services made the alleged grisly discovery at the family’s Juliet Cl home in Rosemeadows early on Sunday.

The bodies of Mr Feng’s mother, 65, and his 25-year-old brother were found at the scene by police.

Mr Feng’s father, 64, was rushed to Liverpool Hospital in a critical condition, but later died.

His second brother, aged 30, was also injured but has been released from hospital.

Jacky Amazing Feng has been charged with the murders of three members of his family and assault of his brother in Rosemeadow over the weekend. Picture: Supplied
In the months prior to the alleged murders, Mr Feng communicated over social media about his Christian faith, along with topics such as self-help and growth.

His last post was on April 6 – just short of a month before the alleged murders, in which he talks about living a virtuous life.

“Everyone has to try and make connections and its good to measure the costs and keep wrongdoing to a minimal. There are dangerous people out there. Not everyone gets along with each other,” his post reads.

Members of the Feng gamily, including Justin (front), Jason (right), Jacky (centre, no glasses) and parents Zhi Chao Feng and Ruvena. Picture: Supplied
In others, he discusses Christian beliefs with other users – asserting “God from the bible is my strength” and writing he “still (has) a bit of trouble grasping” the life of Jesus.

Responding to another user on February 20, Mr Feng writes: “Nothings changed really, life just continues whether you know how to deal with it or not. Generally youre (sic) not gonna know unless you have the ability to pick up on it. If you have given more, then under Gods eyes you have served. And you made a choice, it is up to you how you make future choices.”

Superintendent Healey, said police were confronted with a “very grisly crime scene”. Picture: NewsWire / Damian Shaw

Three people dead in what police say was a “horrendous” scene in a southwestern Sydney home. Picture: NewsWire / Damian Shaw
Earlier, Superintendent Grant Healey said police were confronted with a “very grisly crime scene” when they arrived at the family home.

“Blunt force trauma is always horrendous for people to confront, any weapon attack is always horrendous to confront,” he said.

“It’s a very extensive crime scene, so we haven’t recovered a weapon at the moment, but we’re systematically working through the granny flat out the back and then we’ll go through the house.”

Mr Feng will return to court on July 15.