Hii story tumeongea tumechoka. When you reach the point that there is doubt piga mtu inje roho safi. The gut feeling is always right. Hii maneno ya investigashen will only confirm your fears so you will end up wounded and still resort to option one. Unless of course wewe ni mouse kama jamaa flani ameoa kunguru ya hii hii kijiji.
Kama imefika hii point, there is a high chance ushachezwa. No need for evidence. Gut feelings zimetosha. What you do after that is up to you. Kama hamna watoto, I suggest bailing out mapema...juu ukichezwa tena after azae itakuwa twice as complicated. Good luck