Daniel Park was charged with providing explosive materials to the man accused of carrying out the California bombing.

Daniel Park, 32, was found unresponsive around 7:30 a.m. at the Metropolitan Detention Center in downtown LA and later died at a hospital, authorities said.

A Washington state man who was charged with aiding the bomber of a fertility clinic in Southern California died Tuesday in federal custody, just weeks after his arrest, prison officials said.Daniel Park,