No minds, but they're committing the same action? [He shakes his head.] Maybe they're mimicking each other. Maybe it's not so simple.

[He gives the patients another look before tapping his ear piece.]

There's a man in this building who control people telepathically. Doing so individually would be an arduous task, especially these. More sensible to give a group the same command. Yet he'd still be mentally linked to all of them. If it's him doing this, he'll be alerted when they stop.