Yes, You Can. But You Won't Know if They Have A Death Note Unless You Have The Eyes Of a Shinigami And If You Can't See They're Lifespan, Then They Have A Death Note. Another Way Is If You Have The Eyes Of A Shinigami And You See Another Shinigami Following That Person.
you do
Rem writes L's name in the Death Note, and he dies of a heart attack
I believe he sees 'L' or Ryuzaki...
the room where rem dies is the room where misa amane was confined
The victim whose name is written in the Death Note Dies. if you don't write a name you die as it states in the rule book.
to find out the cause of death
When someone you love dies.
oh no not at he end... in some point he is imprisoned for a couple months then he is chained to L... Then at the veryend he dies on a staircase by Ryuk's Death Note
The anime series takes it's name from the Death Note itself wherein the owner of the book can write a name and the person whose name is written down then dies a premature death as described by the book's owner .
Premature death.
It is called Coda on Death note Soundtrack 3.
The episode when L dies, 25