I was a dominant defensive force for the Bears, known for my relentless pursuit of quarterbacks and disruptive presence on the defensive line. My career was tragically cut short due to ALS, but my legacy as a Bear lives on. Who am I?

1. I played my entire NFL career with the Chicago Bears.
2. I was a first-round draft pick.
3. I was known for the "Peanut Punch".
4. My jersey number was retired by the Bears.