Investigators later found multiple guns, ammunition, and “numerous notebooks … with cryptic writing with different designs and emblems” among Adams’ belongings, according to affidavits.

York County Sheriff Kevin Tolson said police would likely wrap up their investigation after examining the writing, which he termed “incoherent.” But he emphasized that Adams’ CTE diagnosis and the other findings so far may not provide a conclusive explanation behind Adams’ alleged acts of violence.

“Sometimes we get to know the why, sometimes we don’t,” Toland said. “There’s one individual that knows the why and he’s deceased. We may not know in this life, on this planet what the why is.”