A judge ruled Friday that two former senior Penn State officials must stand trial on charges of lying to a grand jury about what they knew of abuse allegations against former coach Jerry Sandusky. District Judge William Wenner decided there was enough evidence against former Penn State athletic director Tim Curley and finance official Gary Schultz that they should be brought to trial. The ruling capped a court hearing where a key witness, Mike McQueary, testified in public for the first time that he saw Sandusky in an objectionable posture with a 10-year-old boy in 2002. The explosive allegations against Sandusky have shocked the university and the college-sports world, and focused national attention on the serious problem of child abuse. The story told by McQueary, a graduate assistant in the university's football program at the time, is key to the case against the two Penn State officials and Sandusky. This is because McQueary testified that he personally witnessed the abuse and then told his boss, former head coach Joe Paterno, who in turn told Curley. Even though McQueary's account was passed up the line of authority at Penn State, no one told police and Sandusky's alleged behavior continued for years. Curley and Schultz deny that they lied to the grand jury and say that Paterno and McQueary only told them in general terms about the incident and not in graphic detail. Sandusky has been charged with 52 counts of child abuse involving 10 victims over 15 years.