Investigators had a list of 20 possible suspects, but Fischer was moved to the top. Detectives said they attached a tracking device to her car, hoping to catch her in the act. On Sunday, more than 30 razor blades were found hidden in Alicia Park in Mission Viejo. Had Fischer been there, the tracking device should have recorded her visit to the park. But the device malfunctioned. http://www.latimes.com/news/local/la-000039747jun06.story?coll=la%2Dheadline...