"hint: It was someone who knew Walt was Heisenberg."
There is ganger tags all over the inside of the house.
I am betting the DEA claims Walt instigated the gunfight and then reports to the media he is Heisenberg and on the lam. BOLO and such which accounts for the reaction of the neighbor.
After the dust settled the gangers and skaters tagged the house. (Note the skaters using the pool)
Probably right. But I wonder if Jesse and his stoner friends have some responsibility?
The reaction of the neighbor was like she saw someone back from the dead. Maybe Walt somehow fakes his own death.
In this show, anything can happen. Anything. And it is all believable. That's what makes this show so amazing: all of it could totally have happened in real life. There is very little need for the willing suspension of disbelief.