Homicide investigators are probing the death of a Mississauga man who was found in his home two days ago, with police revealing Sunday that his passing wasn't the first suspicious death in that residence.

Police were called to a home on Pitch Pine Crescent at about 12:30 p.m. on Friday, regarding a report of a man who was not breathing.

mi-300-caleb-harrison

Police say Caleb Harrison's death is now considered a homicide. (Peel Regional Police)

That man was found inside the home and pronounced dead. Police have identified the victim as Caleb Harrison, 41, of Mississauga.

On Sunday afternoon, Det.-Sgt. Randy Cowan told reporters that police had their suspicions when Harrison’s body was found.

"The coroner had some issues with the state of the deceased, we also had some concerns," Cowan said. "We called in a pathologist and an autopsy was done."

Harrison was found in his home by a co-worker, who came to his home after he failed to show up for work, Cowan said.

Cowan said the information that came back from the autopsy led police to classify Harrison's death as a homicide.

The detective would not reveal the cause of death to reporters.

Police seek info

Now police are trying to learn more about Harrison's life, in particular in his final days and hours.

Cowan said he was last seen alive on Thursday night, when coaching his children's baseball game at Eringate Park, near Renforth Drive and Eglinton Avenue West.

"He left there at about 8:30 [p.m.]," Cowan said. "We have some phone activity after that."

His children went home with his ex-wife, Cowan said.

Harrison is believed to have driven home in his green Ford Mustang, which is now parked in the driveway of his home.

Cowan said Harrison had "been known to frequent some of the licensed establishments" near his home.

"We're interested if anyone saw him out that night, we’re interested if anyone saw him in this neighbourhood, out and about," Cowan said.

Investigators are looking to hear from anyone who may have suspicious activity to report, or who knew, or was familiar with the victim.

"We'd like to get some background, some history on his movements in the last few weeks," said Cowan.

Cowan said that both of Harrison's parents had died in the same home in recent years — and his mother’s 2010 death remains suspicious in the eyes of police.

"We haven’t linked anything, however, everything is on the table." Cowan said. "We are doing a complete 360 of this individual’s life and anyone that had any sort of connection with this individual, as we do in all homicide cases."

Cowan said that Harrison had been living in the upper floors of the house at the time of his death. Some tenants lived in the basement.

The detective also confirmed that Harrison had been convicted of impaired driving causing death in 2009.

Cowan said police will continue to update the public on the status of the investigation.

Anyone with information is asked to contact investigators at 905-453-2121, ext. 3205. Tips can also be passed anonymously through Peel Crime Stoppers at 1-800-222-8477.