Here on out, it contains spoilers for Reichenbach Fall. Read at your own risk!
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“It's... It's Sherlock.”
“What is it this time, John? Is he sulking on the couch?”
“No... No. It's... he's...”
“Well, spit it out.”
“He's... dead.” His voice cracks.
“What? ...John this isn't funny.”
“No, no... it's not funny. It's not funny at all.”
“John... please don't tell me...”
“It's true. Please just come home.”
“John...”
“I have to go.”
“No, John, please...”
“I can't... I... have to go.”
He hangs up.