The NYPD is investigating separate deadly shootings in Manhattan and Brooklyn. Police said a teenager and a man were killed after gunfire erupted at around 7:30 pm on Sunday at Lexington Avenue and East 128th Street in East Harlem. The 18-year-old female victim, identified as Ashley Ballard, was shot in the back and head. The 25-year-old, identified as Harry Mendoza, was also shot in the head. The victims were rushed to Harlem Hospital. In East Flatbush, police say a 17-year-old was shot and killed on East 37th Street and Church Avenue at around 8 pm. Click here to read more on cbsnews.com.