Margaret opened the heavy wooden front door right away.
Detective Davis stood outside wearing a grey coat.
Two uniformed police officers stood behind his shoulders.
Marcus was also standing on the wide front porch.
He wore a fake look of deep sorrow on his face.
Detective Davis: Ma'am we need to ask you some questions.
Margaret: Please come inside into the living room detective.
Marcus: Arrest her now detective before she runs away!
Detective Davis: Let us conduct our investigation properly first Mr. Marcus.
They all walked into the bright grand entry hall.
Marcus pointed his finger at the wooden staircase angrily.
Marcus: She stood right there and shoved my poor wife!
Margaret: I did no such thing Marcus and you know it!
Marcus: You deleted the computer video files to cover it up!
Margaret: You were the one who erased my local drive!
Marcus laughed softly and shook his head with disgust.
Marcus: She is making up wild stories because she is guilty!
Margaret pulled the black flash drive from her suit pocket.
She handed it directly to Detective Davis with confidence.
Margaret: The camera recorded everything to a secure cloud server.
Detective Davis took the small flash drive from her hand.
He plugged it into his police tablet computer right away.
Marcus turned very pale as the video began to play.
The clear screen showed the staircase in bright light.
It showed Emily tripping on the clear plastic wire.
It showed Margaret standing far away with open hands.
The video zoomed in close on the wooden step surface.
It showed Marcus placing that wire earlier that same morning.
Detective Davis stopped the video and looked up slowly.
His face became very cold and firm as he glared.
Detective Davis: Mr. Marcus you have some explaining to do.
Marcus: That video is fake and edited by her!
Detective Davis: This cloud file has a verified digital timestamp.
Marcus turned around to run toward the open door.
The two uniformed officers grabbed his arms very quickly.
They pushed him against the wall and put on handcuffs.