Is ktvu channel 2 news at 5 00 p. M. The fbi says it considers him armed and dangerous. Tonight authorities are asking for your help to find the man after explosives were removed from his San Francisco home. I am ken wayne. I am heather holmes. A man hunt is underway after a fbi raid uncovered explosive materials inside that San Francisco home. We told you about the raid at the home last night. Now we are learning more about the man authorities are looking for. We get more on the developing with news from ktvus cara liu. Reporter we are getting more details about the fbi raid yesterday here in San Francisco at an apartment. A man hunt as you said is now underway. Fbi agents announcing they are looking for Ryan Chamberlain. Lives in San Francisco and wanted for explosive materials. He is 63, 225 pounds and blue eyes and brown hair and last seen driving south of San Francisco in a white nissan ultima. Investigators dont know his intent or motive but they consider him armed and dangerous.