A deranged Brooklyn mom “tired of being by herself” allegedly tossed her newborn baby daughter and 2-year-old son out of a second-floor apartment window Saturday morning, then dove out and continued her crazed attack — until a hero neighbor jumped in to save the kids, a witness and police told The Post.
The shocking incident happened at around 11:20 a.m. in 178 Rockaway Parkway near Kings Highway in Brownsville, where the unidentified 24-year-old woman allegedly threw the 4-week-old girl…
