Tribunal, by Sandra Grey is the first of the five finalists in Best Historical. This is her second book. Here's the back cover blurb.
Berlin, 1945 Major Rolf Schulmann lies close to death in a military hospital after enduring the horrors of a concentration camp. Revived from a coma through a priesthood blessing, he slowly returns to health as his fiancee, Marie Jacobson, tenderly cares for his deep physical and spiritual wounds.
Meanwhile Rolf 's best friend, SS Lieutenant Hans Brenner, begins to overcome the despair and depression of his postwar gutter-rat existence as he finds himself falling for Natalie Allred, a beautiful American nurse. But as the world's emerging superpowers race to obtain nuclear secrets, Hans becomes a pawn in the deadly game-and Natalie's freedom hangs in the balance. Rolf, unaware of their predicament, feels haunted by his Nazi past and seeks peace of conscience through the rigors of a military tribunal. Then, as tensions escalate between the United States and Russia, Rolf and Hans find themselves on opposite sides of the conflict. With vivid emotion, Tribunal explores the risks and rewards of loyalty and love in the bitter aftermath of world war.
I was unable to find a website or blog by the author, but I did find this great book review by Tristi Pinkston.