having seen the front-on photo from TM's facebook, I have to say I think there's basically zero chance she knows him.
He has a scraggly ponytail and seriously looks like a junkie/doner
(methadone)
Although if it was him, then I wouldn't expect him to be a junkie as they tend to be spaced out and easy to fight off (speaking as a one-time attempted mug-ee)
Unless he tried to mug her, it went wrong and he killed her by accident - maybe she hit her head on the kerb - and then he came back to get rid of body?
or maybe it wasn't him but he's not coming forward because he has some drug and theft charges
OR... he's not a junkie at all
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
it looks like there's a facial scab (which is typical of junkies) but that might just be an artefact int he footage