John Dalton (1766 1844) was a British chemist and physicist, and is best known for his work on gasses and the atomic theory. Dalton's Law states that the total pressure of a gas mixture is equal to...
John Dalton used evidence from his experiments with gases to show that there are many types of atoms, not just one kind. He came up with the concept of elements and compounds. He thought incorrectly...
If I remember the story right he was shot in a Chicago street by the new FBI that had been tailing him. So, it was a whole street of people who saw him die.