The next ride that has a death associated with it is the roller coaster Revolution. In 1996, a part-time employee was killed while crossing the tracks of the ride. She was struck by a train full of park visitors as it returned to the station; both passengers and those waiting in line for the ride saw the victim fly into an area beneath the coaster and she was pronounced dead at the scene from major injuries. It's rumored that on a certain part of the ride (assuming the part where the worker is killed) you can sometimes hear the woman screaming, as if her death is being replayed over and over.
The final ride to have a death associated with it is the mega coaster Goliath. In June of 2001 a 28 year old woman died of a brain aneurysm while on the ride. At night, after the park closes is when the activity is supposed to occur. The security office will get a call from the the ride. When answered there is nothing but static on the other end. A group of guards investigated once but when they got to the ride there was no one around. They did report of an uneasy feeling and quickly left.
Ghostly encounters aren't the only strange thing that is going on at Magic Magic. A UFO was seen over Santa Clarita and was reportedly seen from one of the tower rides at the park. The type of sighting is unknown as I was unable to find the actual report, just mention of the sighting.
So next time you take a trip to Magic Mountain, don't go for just the rides. Check out some of the legends this place has. After all the park has been around for over 40 years and is bound to have some secrets.