YW. I worked in the Sheppard/Leslie area for years, but I’m not familiar with the residential part where the Shermans lived, so you could be right about the route.
KD seems to believe the suspect entered from the back of the property, maybe from Forest Heights Blvd. This image is from google maps with the google suggested route. I marked in red the the back access that KD suggested:
View attachment 326575
BBM:
‘The Star, with help from neighbours in the area and friends of the Shermans, has identified the place where the video was captured. It was recorded by a home security system on Bannatyne Drive, 1.3 kilometres to the west of Old Colony Road.
Looking at the video, the Star has determined the person is walking southeast on Bannatyne, away from the Sherman home. It is snowing and the person passes a fire hydrant that police used to estimate his height and keeps going southeast. Eventually, Bannatyne intersects with Leslie Street. The Sherman home on Old Colony is to the west, close to Bayview Avenue.
From Bannatyne, there are numerous ways the person could leave the neighbourhood, including walking out to Leslie.’
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KD believes the suspect is walking away from the home. The police believe the Shermans were murdered anywhere between 9pm - midnight, so maybe this video is from around 12:00 am-12:20 am (?)
I looked at the streets and route you mentioned—but I’d need to map it out to understand it (can you possibly map it?).
I imagine they were aware of being caught on cctv. Maybe they had a different coat on when leaving the Shermans? Turned it inside out, or dumped an overcoat? Maybe that’s why they took an indirect route.