Sherlock silently followed Greg Lestrade into the crime scene. He wasn't supposed to be there, but as the scene was about to be released Greg could see no reason not to let Sherlock in for one final look before the cleaners began their work.

In three minutes Sherlock was able to point out six things that the forensic team and the experienced detectives missed and if it wasn't for the fact that Sherlock had watched them from behind the crime scene tape he would have thought that the weren't even trying.

Greg was the first to notice Mycroft looking in at them from beyond the crime scene tape. He was the first to recognise the look on his face; it was the same look that Greg himself plastered on when he went to visit relatives to notify them of a death.

It only took a touch on the shoulder to make Sherlock whirl around to face Greg with annoyed look on his face.

It took not even a second for Sherlock to realise that Greg wasn't even looking in his direction.

It took a couple of seconds to turn himself in the same direction that Greg was looking.

And it took less than half a second for his stomach to drop at the look that was being sent by his brother.