If the person possessed the eye power of the god of death, he can see the real name and the destined time of death of any human being. He set the time of death when writing the name down in Death Note.
There are a lot of rules in writing the names. I get confused after sometime haha
Light did that because he felt that since he was fated to gain this power of death, he should get rid of the evil in the world. His motive is right but twisted in a sense... imagine you killed the baddies but you became the baddie because you killed someone
His name in japanese means Moon but his name is written as Light. That's indeed his real name. However he had a screen name called Kira when he annouced his presence to the world.
The other person who picked up another Death Note tried to imitiate Kira and she did so by taking a TV studio as hostages and made them broadcasted a pre recorded voice recording from her. During that time, she proved the whole nation by killing a presenter from another stadio then a few policemen came to the building and were killed as well.
The real Kira obviously knew that there was another person but this time, that person owns the eye power because she was able to kill off the policemen straight without knowing their names.
L concluded that this wasn't done by Kira because of the way Kira usually handled things. The recording was done quite coarsely...
This is one heck of confusing manga to read... too much brain power used
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