Workers returned to 345 Park Ave., on Monday​ under the watchful eyes of NYPD officers and a surplus of security after the NYC mass shooting.

Family, friends, coworkers, religious leaders and more gathered for a prayer service for the Midtown mass shooting victims of last week. FOX 5 NY's Sharon Crowley reports from the Midtown service and speaks with members of the community.

Investigators are combing through evidence in the wake of New York City’s deadliest mass shooting since 2000, trying to figure out more about the gunman who unleashed an assault-style rifle in Midtown,