Who spilled the coffee? Four statements, only one is true
Someone spilled coffee on the keyboard. Exactly one person did it, and exactly one of these four statements is true.
Jade: "It was Paul or Théo."
Théo: "It was Inès or Paul."
Inès: "It wasn't Jade."
Paul: "It wasn't me."
Who spilled it? (Spoiler tags please: >!like this!<)