A graduate of Berkeley High School in California, who reportedly told authorities he wanted to help ISIS kill 10,000 people in the San Francisco Bay Area, pleaded guilty to federal charges Wednesday, while his attorney claimed he was a victim of the “system.”

Amer Sinan Alhaggagi, 23, of Oakland, pleaded guilty to trying to provide material support or resources to a foreign terrorist organization, possession of device-making equipment and identity theft, said officials of the state’s Department of Justice.

Authorities arrested Alhaggagi in November 2016 after he bought clothes online with a phony credit card, but he was held so federal authorities could continue to investigate him, the San Francisco Chronicle reported.