Zodiac Killer Movie

I was watching the Zodiac Killer movie on television the other day with my husband. And since in the beginning of the movie, they already mentioned that it was based on a true story, it became an interesting movie. Not because it was a thriller movie, but we simply wanted to know what was going on. My husband even tried to look some information about it through Internet. My husband said, the case is still open after so many years in court. Normally, I'll be afraid to watch this kind of movie, but since I was watching together with my husband, I managed to watch the movie until the end. It's ended a scary one. It's not because they show scary scene but just can not believe it happened in the real life.