Antonio Brown went into a violent rage back in April and threw a bunch of furniture off the balcony of his 14th story apartment nearly killing a 22-month-old toddler ... so says a lawsuit obtained by TMZ Sports.
The Pittsburgh Steelers star WR has been sued by Ophir Sternberg -- who claims his 22-month-old son was walking around the pool at a high-end apartment complex with his grandfather when suddenly "large objects started to fall from the building many floors above them."
Sternberg claims the items included 2 very large vases, a heavy ottoman and other pieces of furniture -- which landed within a mere foot or 2 from the toddler and his grandfather.