Ex-Air Force officer sentenced for child porn

EAST ST. LOUIS -- A former Air Force senior master sergeant should spent four years in federal prison for possessing child pornography.

A federal judge in East St. Louis also ordered 49-year-old Bruce Walker of Belleville to spend three years on supervised release after his prison term.

Walker has been in custody since pleading guilty a year ago to a felony pornography-possession count.

Federal prosecutors say the crime happened in February 2007 in St. Clair County.