Nothing Left to Lose - Patrick Heffernan - Bog

Kevin Sullivan is an architect and former Marine. He and his wife Ellen have a son named Tommy, a great kid who is nuts for the Texas Rangers. While Kevin had to stay home and work, Ellen took Tommy to Disneyworld for Spring Break. On their way home, a bomb goes off on their plane, killing all on board. His life upended, Kevin tinkers with the idea of suicide, but is more attracted to the idea of revenge. His decision made, he begins a new mission and embarks on a new life combating terrorism, by whatever means he decides are necessary.