Accident. A richmond man is in custody after police found explosives at his home on mcbryde avenue. As joe vazquez reports, investigators believe he planned to attack bay area muslims. I think its crazy. Kind of scary, too. Reporter for most of the day, cops were swarming all over the 5100 block of mcbryde. Helicopters, s. W. A. T. Team. Reporter police surrounded this house, then arrested the owner, 55yearold william celli. Police say he planned to harm the muslim community. Police found a device in his house. Neighbors say they saw police bring out what appeared to be a milk crate, maybe a homemade explosive. Maybe one. I dont know what else was in the device but there was something in there. I heard a pop. Reporter that pop was the bomb squad detonating the device. Police cant elaborate on the threat other to say cellis actions drew the attention of Law Enforcement and they were very concerning to Law Enforcement. So they are treating his threats as legitimate. Celli is in jail char