Escort accused of shooting man in the head because he was bad at oral sex

An escort was arrested on accusations she shot a Washington state man in the head because she thought he was bad at oral sex - and she wasn't sure how to tell him.

Marissa Wallen, 21, allegedly admitted to shooting her 36-year-old client at his North Everett home last month. Police say she then stole the victim's wallet, left him for dead and went on a $12,000 shopping spree.

According to My Everett News, Wallen told a detective that the man was "performing oral sex wrong and she did not know how to tell him that" so she grabbed a gun and shot him.

The victim, who was not identified, was shot twice in the back of the head,according to Herald.net.

He was found alive but unresponsive on Oct. 24, three days after he was shot, when his employer asked police to perform a welfare check.

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During a search of the man's home, police discovered his wallet was missing and around $12,000 had been charged to his bank account.

A home surveillance system also revealed Wallen was the last person in the man's home before he was shot. She was seen running from the house the night of the shooting.

Authorities tracked the charges to local businesses, which helped identify Wallen.

An officer wrote in a probable cause statement that Wallen, who has a young child, appeared "emotionless and showed that she was cold and calculated."

She was charged with first-degree assault, first-degree robbery and first-degree identity theft. Her bail was set at a million dollars.

According to Herald.net, Wallen asked police to call one of her clients to help post bond.