EUGENE, Ore. - Billboards in Oregon will carry the image of Daniel Andreas San Diego, a man wanted by the FBI in connection with bombings a decade ago in California.
Recent tips have led investigators to suspect San Diego could be in Northern California and may try to travel through Oregon.
Billboards in Portland, Salem, Corvallis and Medford will carry his image, the FBI said.
San Diego, now 36, is wanted in connection with twin bombings an hour apart Aug. 28, 2003, on the campus of a biotechnology corporation in Emeryville, Calif., the FBI said.
He is also a suspect Sept. 26, 2003, nail bombing at a nutritional products corporation in Pleasanton, Calif.
A federal arrest warrant was issued for San Diego in October 2003.
In April 2009, he was added to the FBI's Most Wanted Terrorist List, making him the first domestic terrorist placed on this list.
The FBI is offering a reward of up to $250,000 for information leading to his arrest and prosecution. The reward can be paid confidentially.
Over the past 10 years, the FBI has received numerous tips allegedly placing him in Novato, Calif., San Rafael, Calif., Santa Cruz, Calif., and Northampton, Mass.
Aside from the northern California region, he has overseas ties to Germany, Spain, France, Italy, Costa Rica and Bolivia.
If overseas, he may possess documentation allowing him residency, but may not be fluent in a foreign language, the FBI said.
San Diego was described in October 2003 as a white male with a light complexion, 6-feet tall, 160 pounds, brown hair and brown eyes.
He has several tattoos, including a round image of burning hillsides in the center of his chest with the words "It only takes a spark" printed in a semicircle below; burning and collapsing buildings on the sides of his abdomen and back; and a single leafless tree rising from a road in the center of his lower back.
The FBI said his tattoos may have been removed, significantly altered or covered with new tattoos.
Because of the unique nature of the tattoos, San Diego may be reluctant to remove his shirt, even in situations where it is the norm, the FBI said.
At the time of his disappearance, San Diego ate neither meat nor any food containing animal products. If he maintained the practice, he may avoid consuming or wearing anything made with animal products.
Several years of living as a wanted fugitive may have forced San Diego to engage in secretive behavior. The FBI said San Diego may be vague or contradictory about his past history, routinely use prepaid cell phones or calling cards, or often change his email address.
Because of his training in computer networking, San Diego may be known by those around him as someone to offer computer-related assistance, the FBI said.
He may also be using his English language abilities to be teaching, translating or part of a service industry such as tourism overseas.
He is also known to cook and bake vegan and vegetarian foods and to have an interest in sailing. He may be using these skills as a form of income, specifically for cash to avoid using banks, checks and credit cards.
Anyone with information on the whereabouts of the suspect is urged to contact their nearest FBI office or dial 911.
The FBI can be reached 24 hours a day at 415-553-7400 in the San Francisco area. All calls are confidential. Tips can also be submitted at: tips.fbi.gov.