come upon

Late one morning on a sun-drenched November day, I was exploring the western edge of MacArthur Park when I came upon a social worker who was looking for a client.

He came upon the two deputies at the Buddhist temple and allegedly fired at them before they could announce themselves.

He came upon being a sheriff almost because he had tried many other things.

I was at her side when we came upon an alley where drug users gather day and night, and a dozen or more people were there as we approached.

We came upon a small group of people gathered on the edge of the park, and I pulled out my phone to show them a photo.