Three recent posts to an Instagram account said to belong to fatal stabbing suspect Ager Hasan are being investigated by police.

Hasan, 24, of Hamilton faces a second-degree murder charge in the death of 22-year-old Melinda Vasilije of Kitchener. Vasilije was found dead in her Country Hill Drive apartment after police were called there around 3 a.m. on April 28.

All three Instagram posts went up Monday night. One is a video of the suspect speaking but it does not have audio, one is a photo of Hasan and Vasilije and the other post is an artistic video that does not involve Hasan.

Cherri Greeno, media relations co-ordinator for Waterloo Regional Police, said police are looking into the posts.

"We were made aware of a recent Instagram post from someone alleging to be Ager Hasan," she told CBC News Tuesday morning.

"We're investigating to determine the validity of that post, as we do with any social media post claiming to be from Mr. Hasan because they become potential evidence."

Waterloo Regional Police have launched a social media campaign in the hopes people will share Ager Hasan's picture, which will encourage him to turn himself in to police. Hasan is facing a second-degree murder charge in the stabbing death of Melinda Vasilije, 22, of Kitchener. (@WRPSToday)

On the run since April 28

Police said a post mortem revealed Vasilije died from multiple stab wounds. Police have said the two had been in a relationship for about a year.

Police know Hasan crossed into the U.S. on the Peace Bridge from Fort Erie, Ont., to Buffalo, N.Y., around 6 a.m. on April 28 — the same day Vasilije was found dead — driving a black Honda HR-V.

A man matching his description was spotted switching licence plates off a vehicle in a Walmart parking lot in Harborcreek Township, near Erie, Pa., around 10 a.m. that same day.

It's believed the man put the stolen plates on his own vehicle and fled the area.

State police said the licence plate is Pennsylvania registration EZV1654 and had a Fraternal Order of Police medallion emblem attached to it.

The Honda HR-V may have also been displaying Ontario licence plate BPKT509.

He was last spotted in Tennessee on May 20 and police speculated he could be on his way to Mexico.

Melinda Vasilije, 22, was found dead in her Kitchener apartment on April 28. She died of multiple stab wounds. Ager Hasan, 24, of Hamilton is facing second-degree murder charges in the case. (Instagram)

Family has lost a daughter

Greeno said investigators have had ongoing contact with Hasan by email. It has been a month since he was last seen, but investigators still believe he's in the U.S.

A social media campaign launched last month resulted in some tips from the public and those are being followed up on, Greeno said.

She said in their interactions with Hasan, investigators continue to encourage him to turn himself in.

"There is a family in the community who has tragically lost their daughter. That's difficult to even begin to comprehend what they are going through," Greeno said.

"We are trying to bring the person responsible for the tragedy to justice so the family and the community in general can be provided with some type of closure."