Why was Ron killed by his son?

Because Ron thinks Rick is the murderer of his father.

Ron is the corner of Harry Potter. Harry Potter is the protagonist in the magical series novels and their derivative works of British female writer JK Rowling. He is the only child of james potter and lily potter. He was born on July 3rd1980, and his godfather is Sirius Black, or Cyrus Black.

Ron's thoughts have gone to extremes. He can't fully accept the reality. He can't see the change of the situation at all. He tried to kill Rick or Carl several times, but there was no chance. He killed himself and his mother because of his timidity. If he had defeated himself in the crisis, he wouldn't have lost three lives.

At this time, Ron hated Rick even more. He thinks Rick killed his brother and mother. This is the problem. He is twisted inside and goes to extremes. In order to kill Rick, Mijon killed Ron with one knife. If Ron hadn't been killed, Rick and Carl might have been killed.

At the moment when Mijon went out, Carl stood beside Ron recently. Ron's reaction was natural. At the moment when the knife was inserted from behind, Ron's instinctive reaction was to shoot by mistake and hit Carl's right eye.

In fact, it was his brother who killed his mother and brother. If Sam hadn't been timid, Rick would have been out of danger with them.