EAST MORICHES - An East Moriches man accused of storing powerful chemicals to make fireworks was back in court today.Police arrested Ronald Walker just before the Fourth of July after his parents allegedly found firework-making chemicals in their garage. The chemicals were apparently so dangerous that the bomb squad had to be brought in.The 34-year-old has pleaded not guilty to reckless endangerment charges and is being held on $150,000 bail.East Moriches man accused of storing chemicals to make fireworks