As it turns out, someone close by him passed away on the day before exam and he was not focusing well enough. I think the low score in the exam was another blow for him. He dropped the course. I felt really sorry for the guy. I went through the paper once more. There was nothing I could do, there was simply no place to give more marks. Probably I could have talked to proper authorities and given a retest. But now that he dropped, it is not possible.

This reminded of a story that I read some time back....
"A man was sitting on the chair in a railway station. His children were playing and soon their playful voices raised into high pitched giggle and merry making. A young lady sitting on the nearby seat was trying to read a book. She got irritated by the noise; even worse she was angry at the guy who was not scolding his children to behave themselves in a public place. When it got intolerable, she decided to confront him. She got the near the guy and spoke;
"Would you mind asking your children to keep their voices down."
He seemed to be in a trance. He slowly looked at her as if he didn't hear. Her voice carried a sense of annoyance at the irresponsible parent.
"I was just wondering, if you could ask your children to keep their voices down."
The guy replied, " They lost their mom today, they don't know that yet. I am sorry I couldn't bring myself to .. " his voice trailed.
Isn't this the case for many other things in life ? You see only the tip of the people you interact with. You can never see the complex emotions . You never see the chain of events that happened leading to an action. We the mortals !!