Cross kill - James Patterson (Alex Cross #24.4)

Goodreads 3.93

Alex Cross, I'm coming for you--even from the grave if I have to.

Along Came a Spider killer Gary Soneji has been dead for over ten years. Alex Cross watched him die. But today, Cross saw him gun down his partner. Is Soneji alive? A ghost? Or something even more sinister?

Nothing will prepare you for the wicked truth.