David Trujillo, 29, has gotten new leases on life from family members and a stranger. With the latest transplant, he is determined to make the most of the lease. David Trujillo's torso is a web of scars. Shunts in his arms, hoses in his stomach, garish gashes left from biopsies and scalpel incisions. In the summer when he goes shirtless, people often stare. Sometimes, to lighten the mood, he'll ...