Manhunt — William W. Johnstone

Out Of The Fight--And Into The Fire
A deadly confrontation with the outlaw who murdered his wife has left Frank Morgan a wounded shell of his former self--until a woman he once knew calls him back to Parker County. Married to another man, Mercy Monfore has a hold on Morgan that cannot be denied. Now, she needs him to take on a dangerous gang--with the law in Parker County set against him and only a young Texas Ranger on his side. But as a battle explodes, and the past pulls at Morgan's soul, he might just miss the gravest danger of all: a manhunter who's ridden long and far to stake his claim to fame--by planting Frank Morgan in the ground.