By saying that Bob Ewell fell on his own knife, Heck Tate is protecting Arthur (Boo) Radley from the unwanted attention of the town. He knows Boo only intended to protect Jem and Scout, and that he is a shy, kind man. Boo would be very uncomfortable if attention was drawn to his actions.
As Scout says, it would be like killing a mockingbird, for it would bring pain to a kind-hearted man who only wants to help others.
Heck Tate is protecting Boo Radley by saying that Bob Ewell fell on his own knife in order to prevent Boo from becoming the center of attention and potentially facing a trial or public scrutiny. Tate believes that Boo has already suffered enough and does not want to subject him to further scrutiny or the spotlight of the court.
At the end, when the sheriff says he took a pocket knife off a drunk man, he only telling a half truth. He found the pocket knife on Bob Ewell, meaning that Bob Ewell had not in fact fell on his knife, the kitchen knife, as the kitchen knife was brought in by Arthur Radley. So his weapon was actually the pocket knife. Yeh, that's right.
The knife was in Bob Ewell's chest when he died during the struggle with Boo Radley in the novel "To Kill a Mockingbird." Boo Radley had come to the defense of Scout and Jem when they were attacked by Bob Ewell, resulting in Ewell's fatal injuries.
In "To Kill a Mockingbird," it is strongly implied that Arthur 'Boo' Radley was the one who killed Robert 'Bob' Ewell in defense of Scout and Jem. However, the novel leaves the actual circumstances of Bob Ewell's death ambiguous, allowing the reader to draw their own conclusions.
The book just describes it as "a kitchen knife"
Bob Ewell
He was stabbed with a knife
He got it from bob ewell. He was going to use the knife to kill the kids. Heck tate took it to cover up that boo radley killed bob ewell. Actually he got the kitchen knife from bob ewell. He got the switch blade from someone on the street. No, I think the first answer is right, though. You have to actually combine the context clues together to get the right answer.
Heck discovers that Scout is wearing a ham costume when Jem defends her from Bob Ewell's attack at the end of the novel. Heck realizes that the ham costume saved Scout's life by padding her body and protecting her from being seriously injured by Bob Ewell's knife.
In "To Kill a Mockingbird," Bob Ewell is killed by Boo Radley when he attacks Jem and Scout Finch. Boo intervenes to protect the children, and during the struggle, he ends up fatally injuring Bob Ewell.
Heck Tate decides that Bob Ewell fell on his own knife because he wants to protect Boo Radley, who actually killed Bob Ewell to save Scout and Jem. Tate believes that revealing Boo as the hero would subject him to unwanted attention and publicity, so he opts to keep the truth hidden for Boo's sake.
Atticus believes that Mr. Tate is protecting Boo Radley by claiming Bob Ewell fell on his own knife and died. Atticus knows that Boo Radley killed Bob Ewell in an act of self-defense to protect Jem and Scout. By allowing Boo to remain anonymous as the hero, Atticus helps maintain his privacy and protects him from unwanted attention.
Atticus says that Mr. Ewell fell on his knife and died during the struggle with Jem and Scout in the final confrontation in "To Kill a Mockingbird." He tries to portray it as an accident to protect his children.