(NewsNation) — As investigators work to uncover a motive in a Minneapolis shooting that left two children dead and 17 people injured, police Chief Brian O’Hara told NewsNation he understands the public’s demand for answers. However, he said the tragedy may never make sense.

O’Hara told "Morning in America" on Thursday that investigators have found “very disturbing writings” but no clear motive.

"A number of things they’ve seen so far are really some very disturbing writings and a whole lot of hate. Hatred towards a whole lot of people and various different groups," he said. "We have not been able to identify a specific motive, a specific reason, or specific triggering event."

O'Hara added, "Unfortunately, this does seem to be what is all too common in our county, which is this classic p

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