Why did the stranger do this in Blood Conscious?

Why did the stranger do this in Blood Conscious? - Low Angle View of Man Standing at Night

In the movie Blood Conscious, why did the stranger (Nick Damici, the armed white man) kill himself at the end?

plot-explanation blood-conscious

Pictures about "Why did the stranger do this in Blood Conscious?"

Why did the stranger do this in Blood Conscious? - Unrecognizable female sitting with bare legs on white sheet with small red heart in hands in light room in daytime

Why did the stranger do this in Blood Conscious? - New Born Baby

Why did the stranger do this in Blood Conscious? - Person Holding White Plastic Hair Comb

Exclusive ‘Blood Conscious’ Clip Asks, “Are You Humans or Are You Demons?” [HD]

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Images: Lennart Wittstock, Puwadon Sang-ngern, Vidal Balielo Jr., cottonbro