You work with Sherlock. He once again solved the case.

Now you two are sitting in a conference room interrogating the killer.

“You have the right to remain silent. Everything you say will be used...” you didn’t have time to finish as Holmes began to speak.

“As a reason to shoot you in the knee, as if accidentally” Sherlock interrupted you, pointing the gun at the killer’s knee. Apparently the presence of a firearm frightened the killer. "It's time, buddy, to get desperate."