A grandmother found the four victims dead with gunshot wounds to their heads when she came over to babysit around 5am.
Police have been trying to determine whether the deaths Wednesday were three homicides and a suicide.
Mr. Davis said that it was clear to investigators that there was no gun near the girl, the teenage male or the middle-aged man. The man whose body they had not yet moved was believed to be the father of the child.
Kemper says it appears all the victims were related.
Police are in Brooklyn where four people were found shot dead on March 14, 2018.
Four people, including a young child, were shot to death in a Brooklyn apartment on Wednesday, hours before students throughout New York City participated in walkouts to protest gun violence.
A TODDLER is among four family members shot dead in a gun rampage at a NY apartment.
The neighborhood, Brownsville, has always been one of New York City's most violent. Authorities say the victims were found in an apartment on Thatford Avenue, part of the Riverdale Towers, in the Brownsville section just after 5 a.m.