Re Bonnie killed Lila: that makes a lot of sense, actually. She’s clearly in love with Sam. But it could be a red herring as well since they keep teasing various people and their motives.
Having thought about it some more, I’m convinced (until I see next week’s ep that’ll disprove it LOL) that Bonnie killed Lila. She wants to be with Sam but isn’t allowed to touch and has accepted that, but then Lila gets to do ALL the touching, so Bonnie wants her eliminated because jealousy sucks. Even though she wants to get rid of Lila, she doesn’t want Sam implicated because she loves him, so she waits until he’s out of town, because then he’s got an air tight alibi so even if it did come out that he was sleeping with Lila, he couldn’t be a suspect. But even though Bonnie knows all the tricks to cover up a murder, one thing she CAN’T control is Sam’s actions, and the idiot had to go and screw up her plan by driving back to town that night.
Also, another thing that I’ve been wondering…has it actually been explicitly stated that the trophy was the murder weapon? Or are we just assuming that because it was covered in blood? Like, is it possible that when they got there Michaela was holding it, (having taken it from Asher) and she walked in in the dark, almost tripped over Sam’s body, dropped the trophy in the pool of blood and then went to curl up in the corner and freak out? Could an injury from that trophy even result in such a big pool of blood? Or did someone else stab/shoot him and the bloody trophy is an epic red herring?