of murder, that is. as for a three-month affair with joan, wilson was very cooperative. he revealed every lurid detail. >> back in april, they were probably meeting for sex about two times a week. and in july, and of course the murder occurred on july 23rd, at least four times a week. >> so now the deputy d.a. began to flip the idea of a love triangle motive on its head. by the way jeffrey wilson talked, it seemed to west the person who had reason to kill david was not jeffrey, but joan. >> from jeffrey's point of view, he describes how she was in love with him, that she was not in love with her husband, that she didn't want to be with her husband, that she financially could not afford to leave her husband. >> wilson said he kept telling her he was only in it for the sex, didn't want to run off with her.