The Davinci Code

Although I haven't read a lot of it, I've been reading the Davinci Code which so far has taken place in Paris so going to Paris has helped me understand it a bit better. It's kind of confusing for me but this is what I think has been going on. Oh, another thing I'm not good with is names of people in books, I only remember 2 so I'll use nicknames. In the beginning there's a man trying to get away from a person trying to murder him. The murderer is some Christian crazy person (goes as far as wearing a belt that burns into his skin to simulate the pain Jesus felt when he died on the cross). The other man holds some kind of secret the murderer is trying to figure out. The victim runs into one of the galleries and rips of a random painting from the wall. In modern museums, they don't use lasers or anything to guard the paintings but when someone rips a painting of the wall, bars come down around the gallery blocking his/her exit. By doing this, the victim was trying to seperate himself from the murderer. He just aimed the gun through the bars and asked him the truth about whatever secret it was (it hasn't said the secret yet) and he lied so he got shot. He got shot in the stomach which makes it so he dies very slowly (over a 20 minute time period) and very painfully. Before he died he positioned himself to look like a star and drew a star on his chest with the blood from his wound. He also had an invisible ink pen which can only be read with certain light. Proffesor Langdon was planning on meeting him the next day so the police (not actually the police, more like the FBI in France) had him get out of bed to meet Fasche, the head of the secret service. They met at the Louvre where Fasche met him and took him to the crime scene. The star stood for a feminine god, it was one of the first symbols ever used. They paint it on American airforce planes. Right at the end of the chapter I was reading, Langdon read the writing the man had left and the last thing he said was "What the hell." so I'm guessing this is where the story starts, trying to find out what the writing meant.