Thank you for your reply. I also have a direct connection to that neighborhood, which is the reason I started posting here on WS. I am a moderator on another (crime) website and am trying like all of us to find out what went bad.
I am aware of the odd behaviors, which is one of the reasons LE was out at their house several times before. The roof can be a way to get into the house by the way. i am sure LE has figured that out already.
The police has definitely leaked some information besides the "hammer". They have leaked information about the crime-scene and information about the way the murder weapon (first or secondary weapon) was handled. I am quite surprised about that - unless - the leak was not initiated by LE but by someone directly involved.
Also, LE does not seem too eager to follow up on tips. I have to assume, all ducks are in a row, 24-7 surveillance is in place.
-No it's not