Foreman Sal was working late at the Gidgits Galore plant and decided to take a new prescription pill that he had ordered over the Internet. Instead of taking two of the orange pills, he decided to take three and chase them down with a couple of beers. Within an hour, Sal was crying hysterically. He picked up a loaded box of gidgits and threw them through the glass windows of his office as the bell rang for the next shift workers to enter the plant. Sergei and Shen were walking by as the glass shattered. They were severely injured by the glass; both later died from the loss of blood. Sal is guilty of ______.