The last summer of the death warriors - Francisco X Stork

When Pancho arrives at St. Anthony's Home, he knows his time there
will be short. If his plans succeed, he'll soon be arrested for
the murder of his sister's killer. But then he's assigned to hep
DQ, whose brain cancer has slowed neither his spirit nor his mouth.
DQ tells Pancho all about his "Death Warrior's Manifesto", which
will help him to live out his last days fully - ideally, he
says, with the love of the beautiful Marisol. As Pancho tracks down
his sister's murderer, he finds himself falling under the influence
of DQ and Marisol, and beginning to understand that there's
more to life than revenge and more to death than sadness