She didn't stay at home when the taxi driver left her there. She may not have stayed at home if Pawel had left her there.
Do you remember when a witness saw Pawel cleaning the inside of his car after Libby's last sighting? If he was washing mud from inside of his car and the ground was frozen solid, where did the mud come from?
I don’t believe she actually said she didn’t want to go home, the witness accounts all point to Libby saying she wanted to go home but walking in the wrong direction, and PR himself said Libby wanted to go back home. I think she was so drunk and confused she couldn’t find her home, PR took her away from safety.
Mud could have come from by the river maybe, or could be yet another lie and PR was just trying to wash away DNA evidence of Libby being in his car, but I believe that is where the first attempt to sexually assault her was in the car, that’s why she ran. He probably thought they’d swab his car and find fingerprints or DNA on handles or something so cleaned it. I think he does have knowledge of fingerprinting and DNA, he’s used the language barrier to appear naive, I think he understands a lot more than he’s letting on.
The defense have painted him to be someone who acts on impulse, who is just a sex pest, has little knowledge of DNA evidence and doesn’t care about being caught which is why he did his previous crimes in broad daylight, but it was when he levelled up to rape and murder that he suddenly took steps to not get caught, that night he went out with intentions of ‘having sex’ as he said in his own words and he had to have known this was not going to be consensual, he knew he would be looking for a woman to rape, this is shown in the footage of him stalking Libby, ‘hugging the walls’, popping out of the shadows, he KNEW what he was doing was very wrong that night, it’s evidenced in how he stalked Libby and the steps he took to try and not get caught such as cleaning his car, looking for the condom, making trips back to the crime scene and lying. Previous times he didn’t care about being seen, would look women straight in the face as he masturbated in public, drove around with the things he’d stolen in his car. But suddenly this night he took precaution to not get caught, because he planned it. He knew he was going out to do something very bad whether that was rape or murder or both. He probably thought he wouldn’t even get a custodial sentence for his previous crimes, but he wanted more and knew that if he went that step further he’d have to be more careful, so I do think more pre planning went into this, he was looking for a victim that night, tragically he came across Libby. I think it was such a cold night he knew the only women that would be out alone would be drunk vulnerable young girls. He saw an opportunity and pounced but he knew full well what he was going to do before hand, he wanted to get more of a thrill because perhaps the other stuff wasn’t doing it for him anymore. He wanted a woman against her will, powerless, and submissive but with Libby he encountered someone who fought back, which angered him, I think he’d been imagining this moment for a long time and in his head the woman was always too scared to fight back, Libby took him by surprise with the scratch and the rage caused him to kill her. IMO
But we will see what the jury says...