Laura sues Dustin in Arizona. Dustin lives in Arizona. Therefore the answer is Yes.
Arthur has never been to Indiana, and therefore does not have substantial contacts with the state. Therefore, the answer is No.
Laura markets her hats in all 50 states, so there is substantial contacts with Texas. However, Alex's accident has no nexus with Texas. Therefore the answer is No.
David reached out to Ana while she was in Texas. Therefore there are substantial contacts. The accident happened while Ana was in Texas. Therefore there is nexus. Therefore the answer is Yes.
