"A friend of mine who was lectured by him just told me that he was seemed strange & 'quirky', and not great at picking up on social cues..."
I did my PhD in a neighbouring lab, involving some collaboration with Tim's. Absolutely agree with the above - quirky, obsessive about science, not great at picking up social cues, immersed in what was going on in his lab at the time ...
Immensely supportive (as a scientist) to the female scientist I then was.
For the record, much, much, much more supportive than my (female) supervisor ever was - the battles faced by some eminent women scientists at that time, rather than encouraging them to nurture women to follow in their footsteps, seemed in some cases to drive them to show female students no mercy, in the 'I survived it, you must too' mould.
Had I been in Tim's lab, i would almost certainly have stayed in science, as he embodied the curiousity, the driving 'need to know' that first took me into science. With a female supervisor, I left it as soon as I finished my PhD.