I will be starting a new story, and due to its writing being written in experiences I have faced through out life, I have this story all planned and written out, yet what has me concerned would be the title itself that would best suit it and the character who could best fit the role. 

Here is the intro for the new story to help get ideas for the title and what character would best suit the role: 

The story kicks off as a 19 year old, working at his local library, one day finds a suicide letter written by a girl whom he had often witnessed at the library. At first the guy showed no interest but as he read her note, he understood she was serious, and the note was mistakenly left in the book. He understood well this was no where near his path to walk upon, yet he was determined to, after all she was the one who taught him to smile, so who was stealing hers? 

Which member from which group, would you believe suits the 19 year old in the intro? Also what title would best work for the story? Please let me know in the comments! Thank you in advance.