Cross Country - James Patterson

A MURDERER OF ASTOUNDING CRUELTY
Detective Alex Cross is called to the worst murder scene he has encountered in all his years on the force. Someone with less than zero regard for human life has slaughtered a family–and then more killings, each one more ruthless than the last, quickly follow. One of those death comes terrifyingly close to home, and Alex realizes that he is chasing a horrible new breed of killer.

A CITY IN CHAOS
As Alex and his girlfriend, Detective Brianna Stone, dig deeper into the case, they become entangled in the deadly African underworld of Washington DC. What they discover there is so shocking that they can barely comprehend it: a strongly organized gang of teenage thugs headed by a diabolical warlord known only as the Tiger. When the elusive killer's trail turns up in Africa, Alex knows that he must follow. Alone.

ALEX CROSS TRACKS A KILLER CROSS COUNTRY
When Alex arrives in Nigeria, he discovers a world where justice is as foreign as he is. Unprotected and alone in a strange country, bombarded on all sides by the murderous threats of the Tiger, can Alex manage to both survive and catch the killer? From the #1 bestselling author James Patterson comes Cross Country-the most heart-stopping, speed-charged, electrifying Alex Cross thriller ever.