@Newthoughts I agree. I know that escalation from offences like burglary and indecent acts etc. to rape and murder is not uncommon by any means, but I cannot get my head around the fact that he completely changed his MO with Libby. And if it IS a condom he's opening/preparing in his car before he gets her into it, one wonders why a) he didn't 'just' do this usual thing and b) why he didn't use it?
Time?
Didn't think he'd need to?
He only uses condoms when there an isn't an audience to scare and just fills them to leave as a calling card?
I'd go with 2 and 3 in that list.
I think he's ready to escalate (early trip to the park that night and drone footage - the prosecutor said it'd be a quiet spot that night and I see no reason to disbelieve him). Libby the the first 'lone' vulnerable woman he's come across at that point in his offending?
And maybe time. With a condom on and just bollards to look at he took seconds. We've heard he didn't even remove her pants.
He doesn't seem to have an usual thing or MO.
He ejaculates on doors and windows when women can see him. Doesn't use a condom when can be seen- MO one
Condoms are usually left when the women haven't been there to see him - for example after thefts - MO two
Breaks into houses and steals sexual personal items - MO three.
Every rapist and murderer has a first time.
Personally the only reason I can see to use the condom when them second woman he stalks that night doesn't materialise is to leave somewhere. It's unlikely any evidence would have been found there if he hadn't used and lost it.
All just my opinions