There seems to be some tendency to lean towards that idea that Mollie was jogging when along came a nice, hard-working farm-hand who asked her on a date.
If we were to view this through Mollie's eyes, is that what she saw and experienced?
A nice hard-working farm hand is NOT what I see at all. But I don't think I'm seeing a planned murder, either. I see an arrogant man, stuck on himself, with a chip on his shoulder on that day. His idea of wooing a woman includes cat-calls and wolf-whistles, which Mollie would find offensive and insulting -- especially since he had to know she had a boyfriend.
As exemplary as Mollie appears to have been, the suggestion she might cheat on DJ would have been insulting IMO.
Now, has CR had a difficult time, being sent by his family to help improve the family financially? Yes. Farm work is backbreaking, 7-day-a-week work, before sunup working and some days to sunset and early dark. Plus, he was just a kid when he arrived, but was immediately thrust into a law-breaking lifestyle that required him to lead a hidden, double life.
On July 18, did CR have delusions he was asking the little lady out? maybe. Or he could have been just "messin' with her" to hear him tell it. I don't think his intentions were harmful -- irritating and annoying, yes, but not harmful at the beginning.
But a testosterone-drunk young man with too much cologne (MY OWN POETIC LICENSE HERE) and an ego bigger than Jupiter was never going to appeal to Mollie.
I don't think CR set out that night to kill anyone. I think seeing her jogging did "perk" him up and he followed her. Maybe he was having a bad day and actually drove into town thinking that seeing her would cheer him up.
Somewhere a fuse on his explosive temperament got lit (that explosive comment came from the article about the young woman who told about coming back into town and running into CR, who acted strange and didn't want to talk about Mollie. That article is the one that mentions his short fuse and explosive personality).
It is my opinion that a really, fine, hard-working farm hand is not going to be cruising round Brooklyn nor anywhere else in a chromed-out Malibu, wearing a gallon of after shave (poetic license again), hanging out the window wolf-whistling at girls. Those real good fellas will have a beat-up-old pick-em-up truck and be too shy to do more than kinda wave or nod to a pretty girl.
Of course, that's just my take on it -- subject to change faster than the weather as my mind sifts and sorts through all this stuff.