He was wanted as a suspect in at least a half-dozen northern California counties. He was the target of a dragnet that caused schools in San Geronimo Valley to enter a lockdown. A poster displaying his face is posted around West Marin. And when he was finally caught authorities said they did not even know his identity. Dimitri Storm, a 42-year-old transient, was arrested last week in Berkeley on suspicion of burglary, theft, providing a false identity, resisting arrest and other charges. Last month Mr. Storm led a police chase from Petaluma through Point Reyes Station, down Highway One, over into Fairfax and into San Geronimo Valley, where he disappeared in the wooded outer reaches of Woodacre. Law enforcement authorities said Mr. Storm, whose attorney could not be reached, had possible mental-health and drug-abuse issues, a long list of convictions and assumed identities, and a trail of dozens of burglarized cars and even an armed robbery. Before he is tried for his charges in Marin and other counties he will likely face trial in Oakland, with a pretrial hearing scheduled there on Monday.