Zack Austin hit a 3-pointer with 0.4 seconds left in overtime and Pitt stunned Ohio State 91-90 in Columbus on Friday afternoon.Ohio State led 89-85 when Jaland Lowe made three free throws for Pitt with seven seconds left. Devin Royal made one of two free throws for Ohio State to make it 89-88, but there was more than enough time for Austin to knock down his third 3-pointer in the second half and escape with an improbable win for the Panthers (7-1).The Buckeyes (5-2) could not get off a final shot, and went the final 4 minutes, 16 seconds of overtime without a field goal.Lowe scored 28 for the Panthers while Ishmael Leggett had 21, Austin 16 and Papa Amadou Kante 12.Bruce Thornton played all 45 minutes in the game for the Buckeyes. He scored seven of his 24 points in overtime, including making 5 of 6 free throws. Royal had 18 and Micah Parrish 15.Lowe hit a jumper with 33 seconds left to tie the score at 77 before Thornton missed a go-ahead shot with two seconds left in regulation. Leggett was off target at the buzzer.Ohio State missed 10 free throws and finished 19 of 29 from the line.The Panthers trailed 55-43 in the second half before going on an 18-2 tear over a 7:17 stretch, including 15 points in a row to go up 61-57.During the run, Ohio State missed four shots and committed six turnovers.