Assuming that you are referring to the large overly maniacal laugh that Light does when he is revealed to be Kira by Near, that is episode 37. Otherwise he laughs a little in almost every episode.
The last episode of volume 9
Episode 37. Although there are rumors of a 38th episode.
I think it's episode 17 at around 13 minutes, 17 seconds. It continues in episode 18, which is really funny too.
In Episode 24, Light gets the death note back and recovers his memories. He then kills Higuchi making the Death Note his again. But the original owner of the death note at that moment is Rem, so he has to touch the piece of paper from the Misa's notebook to be able to see Ryuk. Ryuk stays Misa's shinigami until Mello kidnaps Sayu, then Light temporally returns one of his notebooks to Ryuk, sends it to the police, and when Soichiro dies, Light is again the owner of one of Ryuk's notebooks.
L dies in episode 25, "Silence" Episode 25. The saddest episode besides 37. -B.
The episode was 20, Makeshift, part 2 at around 1:25
I believe, in opinion, the most exciting ep. of Death Note was the episode where Light finally kills L. --------------------- I believe, in my opinion is the last two episodes, when Near corner Light at last in the Yellow Box Warehouse. Its a throw down at last, between two genius's *laughs* - Nunnally_of_Light
The episode when L dies, 25
Episode 37. Although there are rumors of a 38th episode.
Yes, Light Yagami dies in the last episode of the Death Note anime. He was shot multiple times, then he ran off and died on a staircase of some random building...
That would be death note season 1 (volume 1) episode 18- Ally. You can but it on itunes for $1.99 i like your taste that is a pretty cool episode.
-SPOILER-Light Yagami dies in the very last episode/chapter of Death Note. He is shot several times by Matsuda but ultimately has a heart attack, caused by Ryuk.
There are 37 Death Note episodes in English.
I think it's episode 17 at around 13 minutes, 17 seconds. It continues in episode 18, which is really funny too.
Light's father, Yagami Soichiro, dies at the end of episode 29, "Father" ("Chichioya").
From Death Note, Light's last name is Yagami. Light Yagami
episode "19" 5 minutes in
Episode 29, 'Father'.