"That's nonsense John, how can you possibly be confused by something like that?"
"What do you mean! One of the only pieces of evidence we have is an unused tooth pick that was left near the scene of the crime. A tooth pick, I may add, we have seen for less than five minutes and you are telling me that I should know who killed Mary Scott already?"
"Yes John. That is exactly what I am saying."
John felt sometimes that Sherlock expected too much of him. John knew he wasn't stupid he was just human and Sherlock, well Sherlock was beyond that. He often wondered if being able to look in to Sherlock's head, even if only for a mere second, would drive you insane or make you realise the complexity of life and how to unravel it. He always came to the conclusion that it would drive you mad as Sherlock wasn't exactly the perfect picture of good mental health.
"Mary wasn't a stupid girl, so a stranger would be out of the question; she would have raised an alarm if she felt she were being followed. This leaves people she knows well. Family is out of the question as her only relative is her mother who was in work. So we have two other possibilities. A friend of the family or someone only Mary knew. Mary hasn't even started her school yet so friends are out of the question, she doesn't like friends, very wise choice. Mary used to stay at her mums every other weekend so it's someone she knows from visiting, people living locally. Probably a neighbour. A neighbour who asks Mary's mum around a lot. She looks after most of his needs and now her daughter is living with her she has no time for him. He is a jealous man who can't have his own way."
There was silence as the minds of the detectives tried to keep up with the fast paced flow of explanation and knowledge. Before anyone had the chance to reply Sherlock slightly sighed and continued.
"He used to smoke. He replaced his habit of smoking with chewing toothpicks. His fingers are yellow from smoking and his gums are cut from the toothpicks. And how do I know all this, is it because I'm brilliant?, well yes I am but also because he is standing over there comforting Mary's mum. Trouser pocket right hand side he has a pocket full of toothpicks, he likes to keep them close to hand. Now can I go? I have a lot to do I'm a very busy man."
Lestrade turns to the officers next to him with a look that said, "You heard the man".
"I'm sorry about him he's just, well..."
"He's Sherlock. I've known him longer than you John, he's always like that,"
John shakes his head and walks back up the wooden path.