OAKLAND -- A former computer support worker for the Lawrence Berkeley Laboratory was sentenced to 10 years in prison on Thursday for downloading child pornography onto his work computer.
Richmond resident David Busby, 61, a registered sex offender, was convicted of possessing and accessing with the intent to view child pornography in September, according to a statement from U.S. Attorney Melinda Haag. In April 2010, a network security analyst at the National Energy Research Scientific Computing Center, which is affiliated with the Berkeley lab, detected Internet traffic that appeared to be child pornography.
Confronted by investigators, Busby admitted that he downloaded child pornography to two of his work computers. He said would store the pornography for a period of time and then delete it.
Forensic examiners found about 1,400 deleted child pornography images on his computer.
At trial, Busby's lawyers that he had accidentally downloaded the images while attempting to access legal child modeling sites. He was convicted after a 3-day trial.
Busby was also sentenced to 10 years of supervised release after he completes his prison sentence. He has a previous conviction for lewd and lascivious conduct with a child under 14 years of age, according to the California Megan's Law website.