She is Jason Voorhees' 62nd victim.
Kate's boyfriend is Ben and early on it is shown that there is some tension between them after David slips up and reveals something unbeknownst to Kate, which Ben quickly tries to cover. She reveals her frustrations to Sandra after Sandra notices the tension between her and Ben. The two make up and head out to the van where while in the middle of having sex, begin to hear noises outside the van, as well as it shaking here and there. They believe that it is Michael screwing around with them, so Ben goes out to try to scare him, leaving Kate in the van.
Kate calls out to Ben several times with no reply, not knowing that he had just been killed by Jason. She crawls into the front seat and sticks her head out the window, calling for Ben and telling him to quit fooling around. Suddenly Jason Voorhees appears, grabbing her by the back of the neck, and taking a party horn and ramming it into her eye, killing her.