I saw a terrible thing last night

I was coming home from a Theatre meeting last night. It was dark.  I saw a vehicle ahead of me that was stationary.  I approached it slowly and started to drive round it,when I say two police officers one of whom was a young woman.  They were both crouched down over someone lying on the road and the young woman was cradeling the person in her arms.  As to whether I saw someone in their dying momments, I do not know,but I saw someone in the course of their duty showing compassion.