I agree unless we are unable to see from whats available or be provided with access to information/cctv footage gathered by the police that thas not been made public it will ultimately come down to someone snitching or a tip off.
Its incredibly difficult to put the jigsaw together at times it painstaking and definately time consuming ... but its not impossible and there are clues if you keep an open mind and you are prepared to accept all possibilities, look into what you are being presented with in detail question it until you are sure to the best of your ability it fits and where in the timeline it fits, because at some point these detailed clues will come together.
In my opinion we have something much much bigger and complicated here. What do you think
@Yozzer?