Police in Brooklyn are investigating after a woman was found dead in a homeless shelter bathroom on Saturday night, authorities reported. Staff from Star Bright Family Residence, located at 615 East 104 St. in Canarsie, walked into one of the facility’s restrooms to discover a 56-year-old woman unconscious and unresponsive at about 11 p.m. on June 22, law enforcement sources said. The woman was found with her head submerged in a bathtub, according to sources familiar with the incident.