The New York Medical Examiner's office has ruled a 1-month-old boy's death a homicide after police found the baby laying on the ground near a courtyard in Queens on Friday.

Autopsy results reveal that the cause of death was blunt impact to the head and torso with a skull fracture as well as lacerations to the brain, liver and spleen, said Chief Medical Examiner Barbara Sampson.

Police said discovered Rizwan Ahmad under his four-story apartment window at 85-55 115th St. in Richmond Hill about 4 a.m. Police said a neighbor called after hearing a noise outside. When police arrived they found the baby with trauma injuries to the head. Police said there were four adults and two children in the apartment when the baby was either thrown or fell out of the window.

Meanwhile in the Bronx, the NYPD is investigating the death of a 4-month-old baby who died after suffering severe trauma and bruising to the skull and torso. Police said the baby's father brought the child to the Jack D. Weiler/Einstein Hospital around 5:30 a.m. Friday. The baby was later taken to Jacobi Medical Center where the child died in the afternoon, police said.