it's going to raise the suspicions a little bit. >> reporter: even though mark oleksak's story changedpted it. he had receipts for his purchases. and the final texts between the two seemed to affirm they were close until the end, mark promising ann a "big long kiss cause i love you." >> even the morning of the murder they were very lovey-dovey on text messages that particular morning. >> reporter: and you don't think -- >> but he also -- >> reporter: the financial -- the outstanding debt gets you there? >> no. there was nothing to suggest that mark was upset about that outstanding debt. she was paying him back for that debt. >> reporter: but investigators were looking at another possible. a police officer named carla daniele. ann had dated her before she met cara. but it turns out, that wasn't the last time the two would be an item. in 2009, ann and cara were going through a rough patch. they separated for a few months and ann went back to carla. >> and from carla's perspective, perhaps the love of her life was coming back to her. >> reporter: and some more credit cards and more spendi