>> i wish i knew. >> but, even without it, march of 2009, one month after dar foley was gunned down inhower, state police arrested tom foley and charged him with his wife's murder. >> i just was, like, what? why? i was, like, this could not be happening. why do you think i did this? i did not kill my wife! >> to tom and dar's close friends the pierces, news of tom's arrest was almost as stunning as the news of dar's death. could you conceive of tom either hating his wife so much that he wanted to kill her -- >> absolutely not. >> -- or killing her for the insurance money? >> that would be stupid. >> absolutely not. he's not one to put on airs or want things. it's not like money was real valuable to him. >> do you think they had a good marriage? >> i do. everything seemed to be going really good for them. >> it seemed sadistic, shooting your wife at point-blank range, killing the mother of your son on the very day he was celebrating his tenth birthday. >> he never would have done that to his son. >> police continued gathering evidence. ten days after tom's arrest, police brought heath f