A Florida man is accused of killing two next-door neighbors during a dispute over a basketball hoop and their property line — and was allegedly caught on camera by his own home security system. Norman Scott, 63, called 911 on Saturday and said he shot the couple, Taylor and Tara Jones, in self-defense after they attacked him, according to a police report. But authorities who responded to the scene in Wellington, near West Palm Beach, spotted numerous surveillance cameras on Scott’s home and got a search warrant to review footage stored on his cellphone, the report said. “The video surveillance…