 A promoted mansion party in Montgomery County has been shut down before it could even start today. The event, we are told, was supposed to be in the 5900 block of Sundown. That's in Laytonsville. Montgomery County police say after speaking with the owners of the home, they agreed to contact the promoters and then they canceled the event. The promoters are telling the ticket holders tonight the party isn't happening, but police will be on the scene at the expected arrival time to ensure that those who are going there...