Gable Tostee didn't take the stand at his murder trial, but has taken to a Facebook to answer questions about the night his Tinder date, New Zealander Warriena Wright, fell to her death from his Gold Coast balcony.
In October Mr Tostee was found not guilty of the murder and manslaughter of Ms Wright in 2014.
Mr Tostee, posting under his new name Eric Thomas, responded to a range of questions put to him in a Facebook forum on Tuesday.
When asked why Ms Wright's phone was found in his pocket, Mr Tostee said he didn't know: "Only reason I can think of is that I took it by mistake as I rushed out of the apartment."
He went on to get into a heated argument with one woman for not apologising to Warriena Wright's family.
Mr Tostee disagreed with accusations he had never "done or said anything that shows regret", pointing to an open letter released in 2014 and his public posts on Facebook. He also said his lawyers had prevented him from reaching out.
"You also need to remember that not everything I do or say is in the context of Warriena's death, which let's not forget, I was fully acquitted of. Just because I drink a milkshake or go out for a game of golf does not mean I couldn't care less about what happened."
Users of the Facebook forum were encouraged to ask questions and "be civil" but not all took heed of the instructions. Some people were less than happy with his comments, calling him a "disrespectful monster", a "sick individual" and "spineless".
One user asked if he was "dropped on the head as a baby", to which Tostee replied:
One poster asked him if he still had a balcony.
Mr Tostee seemed to take a light-hearted approach to many of the questions, joking about having a behavioural disorder.
He also commented on about becoming the first person to consume a colossal thickshake at a Gold Coast café.
Late on Tuesday night Mr Tostee posted that he had been kicked out of the discussion group: "Funny how they prefer not to have the topic of their own discussion present".