Final answer:
Heck Tate explains Bob Ewell's death as self-inflicted to protect Boo Radley, the real savior of the Finch children, thus ensuring Boo remains out of the public eye.
Step-by-step explanation:
In Harper Lee's novel To Kill a Mockingbird, Heck Tate explains Bob Ewell's death by stating that Bob Ewell fell on his own knife and thus, in essence, killed himself. Sheriff Tate's explanation is a way to protect Boo Radley, the reclusive and misunderstood character who actually intervened to save the Finch children from Bob Ewell's attack. By saying that Bob Ewell's death was self-inflicted, Heck Tate preserves Boo Radley's privacy and prevents him from becoming the center of attention in a legal inquiry or public spectacle. This decision is supported by Atticus Finch, who understands the implication of thrusting Boo into the spotlight against his will.