Eren manipulates Grisha in Japanese sub using English letters/ romaji

Could Grisha Jaeger be the Beast Titan? Could someone give for and/or against proof? - Quora

The EM argument killer. Grisha tells Mikasa is his daughter and

Grisha Yeager - MyWaifuList

My brother ate my dad.” -Zeke Jaeger : r/titanfolk

Did Eren's father steal the Founding Titan to bypass the first king's will, allowing Eren to get rid of the world of Titans? - Quora

Why does Eren mention his father being eaten? What possible reason does Eren want to show Zeke such a fucked up scene?? : r/titanfolk

Anime Spoilers] [Humor] The mystery of Grisha Yeager's whereabouts finally solved. : r/ShingekiNoKyojin

Eren killing Grisha

How could eren manipulate grisha? I mean he was just seeing grisha's memories, wasn't he? Then how could that happen? (He was not even using founder's powers, zeke had control over that)

Rod Reiss, Attack on Titan Wiki