and we're from al zullo remodeling specialists. >> al zullo's remodeling was an institution in illinois. >> al zullo's remodeling has been part of making your house a home. >> maryann was in some of the print advertising very early on in the business, kind of doing this vanna white thing with the kitchen cabinets. >> and maryann clibbery was well known in the community for her generosity. >> she would advance employees' salary out of her own pocket, not the company money. >> investigators were convinced maryann was killed by a client or a co-worker. >> it had to be somebody who was somewhat familiar with the layout of the business. >> the investigation centered on a disgruntled ex-employee, kevin doyle. >> he was not a reputable person. i believe that he was a lot of talk but couldn't perform. i believe he said things that weren't accurate, and i believe that he was not to be trusted. >> when questioned, doyle said he was at home sick at the time of the murder, but there was no one to back up his story. kevin doyle had no criminal record. but the day after the murder, he did something v