On the day he was last seen, police say Jeffrey Navin texted his son Kyle because he feared Kyle was about to frame him for the murder of Jeanette Navin, Jeffrey's wife and Kyle's mom, the Hartford Courant reports. It's only the latest wrinkle in the mysterious disappearance of the Connecticut couple last seen Aug. 4 while more than $2 million in debt. Kyle, 27, was arrested on federal gun charges this week, which led to the revelation of the strange Aug. 4 text conversation between him and his father. According to the Courant, the texts indicate Jeffrey was concerned Kyle had harmed Jeanette and that Jeffrey was being framed for her murder. "U R setting me up," Jeffrey texted Kyle. "Dad really what are you talking about," Kyle replied. At another point, Jeffrey asked, "Did you hurt mom?" and his son answered, "No absolutely not."
But those texts are only part of what Kyle's arrest revealed about the case. Police say Kyle—an accused user of heroin, oxycodone, and Xanax—bought bleach, drain cleaner, stain remover, and cleanup bags the day after his parents were last seen, the Courant reports. According to CBS News, Kyle allegedly changed his story about when he last saw his parents more than once, and his girlfriend, faced with surveillance video, admitted to police they returned Jeffrey's work truck to the Navins' home Aug. 4 but couldn't explain why. The Courant reports Kyle has refused a polygraph test and may have also lied about when he first knew his parents were missing. According to CBS, Kyle is considered a person of interest in the disappearance of his parents, but police still have no idea what happened. (Click to read about what happens to America's missing and unidentified.)