My Grandma the Poisoner

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My Grandma the Poisoner (article)
Summary
Grandma's finale event might be going to do for me, the author thinks even now.
He wrote about his grandmother called Grandma in this story. People were always dying around Grandma. Her children except his mother died, her husbands, her boyfriend also died. His wife had a miscarriage. Her house backyard in which there was a big black garbage bag full of dead animals. The causes of their death were strange but weird.
The dishes she cooked were also always weird, it wasn't felt human could eat. It had something enough to think that Grandma would be a poisoner. Just his mother could refuse to eat it. When he ate it when he was a child, after 24 or even 72 hours later, he had to rush to the hospital in the middle of the night, because he was having trouble breathing.
He thought that Grandma was involved.
However, he wrote in this story that he purge his past, and forgive her. He feels like he's supposed to care. I didn't know whether he thought that after writing or he thought before, then he started to write this, whether he really wanted to expose her or not.
He said "That wasn't accurate" though he just would still be concerned where she was now, because she has the chance that she can do it to him forever.
Words in this story
finale /fi・na・le/fənˈæli/ climax, culmination, end.
final /fi・nal/fάɪnl/  last, closing.
purge / an abrupt or violent removal of a group of people from an organization or place.  removal, expulsion, ejection.