Other contributors have said "Did tamia die?" is the same question as "How did catera tamia light die?" If you believe that these are not asking the same thing and should be answered differently, click here
Depends wether you're asking about the Anime or the Manga. But in the anime he dies in the very last episode. (I'd imagine that he would die in the last volume of the manga)
In Death Note, Light is killed by his shinigami (Death God) Ryuk after Light manipulated Rem (Misa's shinigami) into killing L. When you turn it off ; hmmm ...........