When you think Misty officially decided to murder...?

Currently rewatching the series ahead of the S3 premier, and I'm curious, when do you think Misty officially decided to kill Jessica Roberts? She's so conflicted about what to do on several occasions and seems to actually want to let her go at times, but watching this scene again where Jessica points out that the other girls never reached out to Misty in 25 years, I think this is it. The glare 😱 a lot of people seem to think Van is the most terrifying character, but I would never want to be on the receiving end of Misty's wrath