Police now say the death of a 19-year-old on Thurman Circle is not criminally suspicious.
The Coroner's Office is handling the investigation and officers have cleared the scene.
Investigators were called to the home near Fanshawe College on Sunday afternoon around 2:30 by first responders.
They say the teen was taken to hospital in an undisclosed condition and later pronounced dead. His identity and the cause of death has not been made public.
Neighbours who lived in the area say the home was being rented by a group of young men preparing for the upcoming school year. They believe they were having a party over the weekend.
No further information will be released by police.