Series 10 - Episode 6 Discussion

[Gazelle]

A final observation - why didn't Erin or Dimitri go after Sasha when he left the building carrying that blade of glass? He was clearly in a totally messed up state of mind and hence extremely dangerous and they knew Harry (and Ruth) had gone outside for some air. Okay they appeared on the scene eventually but that was too late, they should have been onto him straight away.