A Seattle-area teen suspected of killing his girlfriend’s 13-year-old brother was fascinated by blood and vampires and boasted about a “License to Kill” on his Facebook page. Click below to read the rest of the story.

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Brandon Suhr, 19, is being held on $1 million bail on suspicion of burglary, kidnapping and murder of the unidentified seventh-grader from Pacific, Wash., KOMO News reported.

Four days before the alleged Friday homicide, Suhr posted a fake “License to Kill” on his Facebook profile, complete with his photo, signature and an expiration date.

“Got it to day so don’t f— with me b—–s,” he threatened in the caption.

He sported sinister red contact lenses in an old profile picture and posted a video in April that shows an unidentified male – possibly himself – bleeding profusely from a gash on his left hand.

A film credit for the 2-minute movie identifies “Brandon” as “the a—hole who hurt me.”

Police were summoned to an apartment south of Seattle shortly after 3 a.m. Friday when a man called 911 to report that his 13-year-old son and 16-year-old daughter were missing.

Officers searched the dwelling and found the seventh-grade boy inside a bedroom.

The 13-year-old was dead from “homicidal causes,” Stephanie Shook from the Pacific Police Department told the Daily News.

Cops later located the victim’s sister with Suhr, who is her boyfriend, at an Algona home about 1 ½ miles away, KOMO reported.