An IT employee has been found guilty of murdering a couple using the powerful opioid fentanyl.

Luke D’Wit is accused of killing Stephen Baxter, 61, and his wife Carol, 64, and rewriting their wills to Responsible for their shower mats and bathroom companies.

The 34-year-old from Mersey worked for the couple and is said to have described himself as “almost like a son to them”.

The Baxters were discovered by their daughter at their Mersey home. Essex Easter Sunday last year.

Son Harry Baxter said DeWitt played a “dirty game” of “torture and drugging” his parents before their deaths.

Baxter said in a statement released by Essex Police that he had lost his mother “a long time ago” before his parents were found dead.

“I’m referring to the day Luke began to torture and anesthetize her,” he said.

“What I didn’t know was that I had already lost my mother.

“Looking back at her video, I feel so sad when she was acting weird and saw him giggling in the background and knew he was the one causing this pain because we were all dolls in his dollhouse and it was him A victim of manipulation.”

The Baxters’ daughter previously told Chelmsford Crown Court they “got on really well” with DeWitt but everyone thought he was “weird”.

Ellie Baxter said he was brought in to help build a website but ended up going to the home “every day” and ended up helping her mother with her medication.

She told the jury DeWitt knew the combination to their front door and the location of the key safe.

The trial heard he was caught on a doorbell camera walking towards Baxter’s home and looking at his phone two days before the body was found.

“Did he watch them die?” prosecutor Tracy Allin asked the court.

She added: “Is this when Mr. DeWitt cleaned everything up and cleaned the cups without leaving any traces?”

Fentanyl – Extremely strong Opioids A substance about 100 times more powerful than morphine was found in the bodies of Mr. and Mrs. Baxter.

The trial lasted more than a month, with DeWitt, who denied murder, being unanimously found guilty by the jury on Wednesday during the third day of deliberations.

The defendant, who used a wheelchair throughout the trial, appeared unresponsive in the court’s secure dock.

Judge Nicholas Lavender said he would sentence DeWitt on Friday.

‘He will commit more murders’

Detective Superintendent Rob Kirby, of the Kent and Essex Serious Crime Agency, said in an interview outside court that DeWitt was “without a doubt one of the most dangerous people I have ever encountered in my career as a police officer”.

“I am absolutely convinced that if he had not been caught he would have gone on to commit more murders,” he said.

Mr Kirby said “justice has been served today”, adding that DeWitt “deserves to be behind bars”.

He added that the defendants had “deceived everyone.”

“He made friends with people and came across as a very compliant, helpful guy, but behind the scenes he was a cool, calculated killer who spent years planning Carol and Stephen Backus A special death.”

He described DeWitt as a “loner” who “spent a lot of time creating false personas, all in an effort to control the Baxter family.”

“His level of cunning is staggering,” Mr. Kirby said.

Asked about a possible motive, Mr Kirby said it was “unclear what was going on in DeWitt’s mind”.

“Certainly he benefited financially from the deaths of the Baxter family and we believe that must have been part of his motivation,” he said.