robin hoynes funeral was a big event in this part of town. and because robin was well known and so well liked, much of the neighborhood attended. and friends and colleagues. except for one, cheryl, the girl who had switched shifts with robin the night the murderer came to call. >> i had heard that they were really upset with me. and that they did not want me at her funeral. and i did not go. i felt really sad that i traded hours with her. that should have maybe been me. i just felt very guilty. >> a few days after robin's murder, the case seemed to be going sideways. william marshall remained only a person of interest. no new leads had emerged. and that odd clue, the piece of foam, was still just a mystery. then came a break. police got a call from an employee at a kentucky fried chicken outlet about 30 miles away from the one where robin was killed. he had claimed that someone in army fatigues, when akot club and boots had been casing the store after hours. detective lancaster showed the employee pictures of several suspects who might have be