[Tilted Irish Kilt]

Research shows that he was tending to his elderly parents who live in an apartment complex on the westside of Colombus
Therefore, it is safe to assume he was a commuter since his parents and the university are in the same city,
also, as a third year student in business logistics (credits from Columbus Community College), he would have use of a vehicle for commuting.

[ColdOne]

Thanks.

[Yulee]

Another post indicated he came from Pakistan in 2014, and was given permanent resident status (green card). Can someone confirm this?

If so, he was not self radicalized. He came here directly from the middle east as an infiltrator. Read "Sleeper", waiting for the call to act. I believe the call was given not long ago for Muslims to use swords and vehicles to destroy non-Muslims.