FORT LAUDERDALE, Fla. — A jury spared Florida school shooter Nikolas Cruz from the death penalty Thursday for killing 17 people at a Parkland high school in 2018, sending him to prison for the remainder of his life in a decision that left many families of the victims angered, baffled and in tears.“This is insane. Everyone knows right? This is insane,” Chen Wang, cousin of shooting victim Peter Wang, said at a news conference after the jury’s decision was read. “We need justice.”Cruz, 24, …