McKinney (Texas) four-star linebacker Riley Pettijohn trimmed his list of top schools down to four on Saturday, naming Ohio State, Texas, Texas A&M and USC as his finalists. Official visits to each program will be taken this month, and that began with his latest trip to Ohio State this weekend. The Buckeyes are looking to lure the 6-foot-3, 200-pounder away from the Lone Star State, and Pettijohn was around some of the top prospects in the nation in Columbus. LBs coach James Laurinaitis, safeties coach Tim Walton and the entire OSU staff are doing what they can to make Pettijohn feel like a pr…