How to Disappear, by Ann Redisch StamplerRead about another entry on the list.
Eighteen-year-old Jack, a whip-smart A.P. student on the verge of graduating, was born into the family business, and the family business is deadly. Dad was a hit man, and older brother Don, “a low-life enforcer,” is serving time while attempting to follow in Dad’s footsteps. When Don orders Jack to carry out a hit on his behalf, Jack believes he has no choice but to comply, or his mother will pay the price. Meanwhile, 16-year-old Nicollete is on the run across state lines after witnessing—or possibly committing—a horrific crime. Channeling her heroine, Xena, Warrior Princess, Nicolette proves capable of doing anything to survive. When the two cross paths, they feel an intense attraction that can only end in love or murder.