CSU rallied from a 12-point deficit in the second half and took a one point lead with 57 seconds to go, but Drew McDonald knocked down three free throws to give Northern Kentucky a 62-60 victory.
"That game was our game to take, but we didn't finish it. That has been our M.O. all season," said Vikings head coach Gary Waters. "We got one guy who can score and we don't have anyone who can help him."
Edwards led the Vikings (8-19, 4-11 HL) with 19 points, while Kash Thomas added 11. Demonte Flannigan and Bobby Word struggled, shooting a combined 4 -for-18, for 15 points.
Carson Williams led the Norse (18-9, 9-5 HL) with 22 points.
CSU held McDonald, who scored a career-high 37 points against the Vikings in the first meeting in Highland Height, Ky., in check for most of the game. He scored 11 of his 13 points in the second half.
McDonald was 1-for-7 from the field, but cashed in at the line, going 10-for-13.
Friday's loss at the Wolstein Center marked the seventh time during conference play that the Vikings have lost by five points or less.
"Breakdowns and mistakes," Waters said about what the difference have been in all these close games. "It came down to three plays - two free throws we missed, a layup Demonte [Flannigan] missed and a turnover by Kash (Thomas)."
"All he had to do is lay it in. That was the game," said Waters.
Flannigan, a Villa Angela-St. Joseph product, was just just 2 of 10 from the field and finished with six points.
After McDonald split a pair at the line, CSU had one last chance, but they couldn't get a quality shot off. Rob Edwards' three-point attempt at the buzzer resulted in an air-ball.
CSU shot 30 percent in the opening half and trailed 33-27 at the half.
The Vikings started the second half slow as NKU made four of its first five shot to take its largest lead 12, 42-30.
CSU rallied using a match-up zone to slow down NKU's high powered offense. The zone held the Norse to just one field goal in the final 11:14.
A 14-6 run gave CSU a 58-56 lead with 2:33 to go, but then CSU's offense stalled again. They went the final 2;32 without a field goal.
McDonald answered back with a three-pointer - his only field goal of the game - put the Norse up 59-58.
CSU would take one last lead as Anthony Wright calmly knocked down a pair of free throws to put the Vikings up, 61-59.
But McDonald sank 3-of-4 free throws down the stretch to give NKU its sixth win in its last seven games.