St.Patrick’s Cathedral was filled with mourners at its Easter Monday mass as churchgoers learned of Pope Francis’ death. Plus, a Hudson Valley health system agrees to restore psychiatric care and mental health reforms. Meanwhile, details are emerging about Mohsen Mahdawi, the second Columbia University student protest leader detained by U.S. immigration officers in recent weeks. And finally, the NYPD is investing in new technology to combat drones used for “nefarious purposes.”