A Casper man was arrested recently for putting the muzzle of a pistol to the head of a woman, threatening to kill her, and hitting her with it, according to a police affidavit filed in Natrona County Circuit Court.

Skyler Wrey Hennek, 18, was charged during his initial appearance in Natrona County Circuit Court on Tuesday with felony counts of aggravated assault and aggravated robbery, and misdemeanor counts of domestic battery, interference with an emergency call and property destruction

Because of the seriousness of the charges -- aggravated assault is punishable by up to 10 years in prison and aggravated robbery is punishable by five to 25 years in prison -- Circuit Court Judge Steve Brown set Hennek's bond at $500,000.

The case began when a Casper police officer responded to a call early Feb. 27 from the Wyoming Medical Center, where the alleged victim said Hennek arrived at her residence about 3:20 a.m., and tapped the barrel of the gun to her head before hitting her with the butt of the pistol, according to the affidavit.

Hennek took her cell phone from her and put it in his pocket. When she asked for it, he put it on the counter and smashed it with the gun so she could not call 911. He then slapped her across the face.

A friend at her residence took her to the hospital.

A physician stated she had suffered a concussion and a fractured nose.

The alleged victim told an officer that she and Hennek had a sexual relationship in January, and he was diagnosed with a sexually transmitted infection. She was not.

She told the officer that Hennek came to her residence to say he got the STI from her, but she said she had been checked. The alleged assault happened after that.

Three others who were at the residence later corroborated the alleged victim's story.

Officers went to Hennek's residence and found a pistol, rifle and shotgun.

Two men at the residence told police they were at the apartment that night, but Hennek was not there.

When Hennek was interviewed at the police station and advised of his rights, he said he did not know the alleged victim or the others at her residence. He also said he was home with the two men during the night of the alleged assault.