Wow. Kane wasn't the least bit interested in what John had to say. He did interrupt John while he was trying to share his leads, couldn't be bothered to tell them if suspects the Ramseys were investigating were cleared or not, and started an argument with Lin right in the middle of the discussion. Kane accused Lin of playing a stall game, so it's obvious the interview was meant to be interogatory not informative as the Ramseys had hoped. Sad.