The Meaning of the English Word Evidence

To day's english word is evidence. Now as you listen to the story, see if you can guess the meaning of the word evidence. It was about four in the afternoon when billy walked into the supermarket. He was just going to the store to purchase some cereal. But as he was walking down the aisle, all of a sudden he heard a loud noise and he heard lots of commotion. And when he turned to the right, he saw a group of policemen rushing toward him. They said that some one told them that there was a man in the supermarket, and that an had been stealing from the supermarket,. The last time he stole something, he actually had killed someone.