User blog comment:IcedWings/Disscussion Questions/@comment-3083576-20121110024050

In relation to question 1: I say the same same reason as The Maverick013 said.

In relation to question 2: When Light dies halfway up a flight of stairs, it would appear that it was symbolized that he couldn't go to heaven nor hell (heaven at top and hell at the bottom).

In relation to question 3: I think Light's relations with the police did mostly help him. When cameras were secretly installed in his room they were only removed in the end because his father Soichiro wanted them to be. If Soichiro was not on the team then the cameras would have likely remained, leaving Light to not be able get the Death Note back out it's hidden place.