A dog was killed trying to save his owner from a train

You've probably heard of Hachiko, the dog who waited for the Japanese professor in the bus stop his entire lifetime.

There's also the story of Hawkeye, who stayed by his master's side during the funeral.

The latest I have heard of is about a dog named Capitan, who was owned by Miguel Guzman. Miguel Guzman died in 2006 and Capitan stayed by his grave for that long a time. The cemetery director noticed Capitan wondering the cemetery everyday. He and his staff eventually begun feeding and taking care of the dog. He also says that at 6 o'clock sharp, Capitan would lie down on top of Miguel Guzman's grave and stays there all night.