Misa kills herself by jumping from a rooftop. I hate Light for dying not through L's holy hands, 'cause Near is just a dumbass who's full of himself - trys to REPLACE the greatest detective (after Sherlock Holmes though) world has ever seen. Ridicolous!!
But I would love s sequel of the series - I love Death Note the most, although I know nearly all series ever published. By the way, the mangakas from Death Note already created another series which is going to be turned into anime soon ... *yay*