>> did john heckel have something to hide? didn't offer an answer for that, and john heckle says he doesn't remember much about those days. >> i don't recollect throwing anything like that out. >> the defense even suggested that kathy heckel may not have died on july 15, 1991. >> did you really think she lived past that day? >> i certainly have a reasonable doubt as to whether she died that day. >> to support that theory, the defense introduced statements john heckel made more than 20 years ago. in one, heckel said he thought his wife may have siphoned thousands of dollars from a joint bank account. in another he asked investigators if a woman pictured in a swingers magazine might be his wife. >> is there any credible argument that kathy heckel squirreled away money, vanished, ran out on her husband and her family, and then posed for pictures that were put in a swungers magazine that anybody could have seen? >> i certainly don't think it has been disproven beyond a reasonable doubt that that could have occurred. >> on the stand