LONGMONT, Colo. -- A homeowner was arrested early Sunday morning after more than 200 chemical compounds and liquids were found in his home, several of which could have caused significant damage if detonated, Longmont police officials said. Ronald Swerlein, 50, was arrested around 4 a.m. near his home as he tried to get back into his residence. Police said they found Swerlein returning to the crime scene with a screwdriver and a flashlight. During execution of a search warrant, police said they found many blasting agents and highly flammable fuels and oxidizers in the home that presented significant hazard concerns....