There's probably something else. I can see you're not playing with the ingame cheats. Save your current game, activate cheats, misc, activate cryptic spoilers, check again the spoilers for the event.
Thanks for the tip on the spoilers, now I use them every time I am stuck. The challenge with the this Alexis PI part is that the phone does not show any link/button to call the PI and he just does not call back and the spoilers aren't helping here.
