にぎりつぶしたそうだ
nigiritsubushita sōda

Godan Verb (su)
Evidential Auxiliary

Expresses hearsay about a past event ("I heard that...") of 握りつぶす

1. It seems they suppressed it.; It seems they covered it up.; It seems they quashed it.

Past/Perfective
Hearsay Evidence