Did they have a clue? New details revealed in Plano mass shooting

PLANO, Texas (KTRK) -- Workers at a bar in Plano, Texas, may have gotten a hint that a mass murder was about to occur.

According to the workers, Spencer Hight, the man who killed eight people at a Cowboys watch party, came into the bar earlier in the evening and showed off a knife and a loaded gun clip.

Unfortunately, no one reported the incident to the police before Hight left the bar and drove to his ex-wife's home.

There, according to police, he got into an argument with her and just started shooting.

Witnesses heard his ex-wife scream, "do you really have to do this?" and then they heard more gunshots.

Hight killed eight people at the home before police officers arrived and shot and killed him.

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