Thank you Steelslady, you're very kind. I was right about him not harming them, I hope I'm also right that he didn't take them to abuse them.
On your speculation, that's a very good possibility or maybe dad was texting him, reassuring him that he understood his plight, played the "buddies in arms" scenario: "Man, I know you didn't hurt Tanya on purpose, I know how crazy she can make you. She just pushes and pushes until you snap, I don't blame you man, you lost it. How are the girls? You know bro you really need to let them go, if you let them go somewhere than you can take off, will be easier to hide." Those kinds of messages. This may also explain why dad never made any public statements. I imagine LE would have advised him to avoid the media so that he didn't trip up or get caught off guard with a loaded question from a reporter.