Police were still investigating why Casmine Aska, 17 years old, allegedly threw Freddy Martin off the roof at 1545 Nelson Ave. in the MorrisHeights neighborhood.
The boy had been strapped into a car seat behind his mother, Joanne Sanabria-Pacheco, when a stray bullet pierced the rear door and struck him in the chest in the MorrisHeights section of the Bronx.