More police-worn body camera footage was played in court Friday on day four of witness testimony in the trial of Daniel Penny.

Moriela Sanchez, 18, asked the 911 operator to send cops and an ambulance because someone was attacking people on the uptown F train subway car, according to audio of the call revealed during her testimony in Manhattan Supreme Court.

It was a second day of testimony from straphangers, who said a Michael Jackson impersonator with mental health problems made them more afraid than they had ever been on the city transit system.