Police breakthrough nearly four months after Sydney woman stabbed to death

Gilbert, 42, was found dead inside her unit block in Merrylands in April after she was allegedly stabbed to death.

9News can exclusively reveal police have a person of interest and say charges are likely but it’s a bittersweet moment for her husband, who was initially the prime suspect.

They planned a future together that would, hopefully, one day include children but the dream was cut short when Gilbert was allegedly murdered in her apartment.

Mr Gilbert found her bleeding out in the apartment and called authorities for help but was initially investigated as a suspect.

Mr Gilbert confirmed he was at first the prime suspect in his wife’s murder but after two days, he was released without charge.

9News can reveal police have a new person of interest – Mr Gilbert’s best friend Morten Jensen.

“He was like a brother to me, I trusted him with Erin,” Mr Gilbert said.

Mr Gilbert claims he spoke with Jensen on the night of Gilbert’s death, claiming Jensen was trying to phone her.

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In the days after Gilbert was killed, Mr Gilbert said he never heard from his friend despite numerous calls and texts.

“I thought it was strange he wasn’t coming to see me, he’s meant to be my best mate, he just disappeared,” Mr Gilbert said.

Mr Gilbert hadn’t disappeared but had been sent to prison after he was arrested on unrelated matters two weeks after Gilbert’s death.

During the police investigation, a crucial piece of evidence was found showing a video of a man on a motorised bicycle speeding away from the crime scene in the minutes after Ms Gilbert’s death.

Police will allege the man on the bicycle is Jensen.

Authorities will be travelling to his jail cell at Silverwater in the coming days in connection with the investigation into Gilbert’s alleged murder.

9News does not suggest Jensen is guilty of any crime in connection with Gilbert’s alleged murder, only that he is a person of interest.

While Mr Gilbert is relieved to have been cleared of any suspicion, there’s no celebration for him having lost a wife and now a close friendship.