http://mydeathspace.com/article/2007/07/24/Chelsea_Frick_(16)_and_Nicole_Rostofer_(17)_died_w hen_their_vehicle_rear_ended_a_garbage_truck
I believe that she may have died in June of 2007. I can find a lot of RIP Khelsea headlines, but not Khelsea's page.
Here is a poem post site in her name. http://www.postpoems.com/cgi-bin/displaypoem.cgi?pid=251993
Her profile there says that her bday is 3/16/90 and that she is from Ohio. The poem that she wrote is interesting to say the least.