NOEL Allen Clark was allegedly beaten with a bat, strangled with electrical cords and sprayed with poison in the moments leading up to his death, a Supreme Court sitting in Maryborough has heard.
Graeme Kenneth Wright is on trial for Mr Clark's murder - and it is also alleged he told an associate to chop off Mr Clark's penis before he disposed of the body.
In her opening statement on Monday, prosecutor Vicki Lourey said an associate of Wright had lured 33-year-old Mr Clark to a residence in Maryborough on May 25, 2009, where the alleged murder took place.
It is alleged afterwards Wright put the body into the boot of Mr Clark's car and disposed of it.
The body has still not been found.
Ms Lourey said Wright had been excessively jealous and obsessive of his ex-girlfriend Kylie Mackney, who had formed a relationship with Mr Clark in April, 2009.
Ms Mackney, one of the first people to give evidence on Monday, said a week or so into the relationship Wright had attacked Mr Clark with a metal bar.
She said on another occasion an "aggro" Wright, with whom she had been in a relationship from 2006 to 2008, told her Mr Clark "was a dead man".
The court heard on the day of the alleged murder, Mr Clark had driven from Ms Mackney's home in Murgon to Maryborough to visit Centrelink.
"He was coming back," Ms Mackney said.
"I tried calling about 4.30pm. On the second or third try some girl answered the phone and said he was busy."
She said the next day Wright called her and asked about Noel.
When she replied that she had not seen him, he said: "What? Having trouble in paradise?"
Mr Clark's grief-stricken mother, auntie and cousin, also gave evidence on Monday.
The trial before Justice Ann Lyons continues.