Source: https://www.huffingtonpost.com/entry/noor-salman-trial-pulse-massacre_us_5abbe04be4b04a59a313df85

«After hearing how Salman behaved at FBI headquarters that night, Campbell, the domestic violence expert, said it was not that unusual. Abuse victims, under pressure, often develop a flat affect and come off as disengaged. It’s a survival mechanism, she explained.»