Leonard Memento Character Analysis

The main character of the film, Leonard Shelby, played by Guy Pearce, is constantly trying to find his own identity, and he tries to remember who is the murderer of his wife. He has memory problems provoked by the shock that produced in him the murder of his wife, when it runs a number of hours he immediately loses all memories about his life and has to start all over again. This makes him have something like paranoia and it causes him to not trust on everyone around him. He invents a system whereby when he is aware of his problem he searches in his pockets and finds notes with his life data, instant photographs of people he knows throughout his research to find his wife's killer, and also he has his entire body tattooed with important facts