Definition:
Stockholm syndrome, or capture-bonding, is a psychological phenomenon in which hostages express empathy, sympathy and have positive feelings towards their captors, sometimes to the point of defending them. These feelings are generally considered irrational in light of the danger or risk endured by the victims, who essentially mistake a lack of abuse from their captors for an act of kindness. The FBI’s Hostage Barricade Database System shows that roughly 27% of victims show evidence of Stockholm Syndrome.

Seems to be legit.

And for the custodian who is scared that Miss Marples might shoot him,....go find a new job.