In a tragic incident in Pennsylvania, a man is facing serious charges after allegedly fatally stabbing a woman in her apartment when she rejected his advances for sex.

Glenn Whittier, a 54-year-old, has been charged with criminal homicide and tampering with evidence in the brutal death of 59-year-old Pamela Puskar. This information was confirmed by the Westmoreland County District Attorney’s Office, as reported in their official announcement.

Authorities report that the events unfolded on a Friday night at the Loyalhanna Apartments in Latrobe, where Whittier was visiting a friend.

At some point, Puskar entered the friend’s apartment looking for her own friend, and Whittier asked her for cigarettes, Pittsburgh-based ABC affiliate WTAE reported.

It is alleged that Whittier followed Puskar to her apartment and made an unwanted sexual proposition, which she firmly declined.

According to court documents acquired by The Tribune-Review, the situation escalated past midnight into Saturday morning. At this time, Whittier’s friend reached out to him via phone, during which Whittier indicated his intention to engage in a sexual encounter with Puskar.

Puskar could be heard in the background of that conversation stating, “You’re not touching me,” according to police.

Later that morning, phone calls to Puskar and knocks on her door went unanswered. Finally, on Sunday at about 8 a.m., entry was made into her apartment, where she was found dead in her kitchen.

Investigators believe Whittier killed her on Saturday morning.

Surveillance footage captured Whittier leaving the Loyalhanna Apartments at approximately 7 a.m. on Saturday morning carrying a Ginger Ale box and with his hood tied tight around his face, according to the district attorney’s office.

An autopsy performed on Puskar determined she was stabbed multiple times and died as a result of homicide. Whittier was arrested on Wednesday, and, while being led to a law enforcement vehicle, had some words for inquiring reporters.

“Do you believe you’re innocent?” a reporter asked the suspect. “Yes,” he replied, according to WTAE.

“What were you doing in Ms. Puskar’s apartment?” another journalist asked.

“No comment,” he responded.

“Did you know Ms. Puskar, and if so, how?” the first reporter asked.

“That was the very first time we met through a friend,” he said back.

Whittier was arraigned on Wednesday and denied bail.

He is expected back in court on Dec. 8.

The defendant reportedly previously served time in prison for two assaults on women. In one of the cases, in 2015, he was accused of holding a woman captive for days, beating her with a hammer and pouring bleach into her eyes.

Court records show Whittier pleaded guilty to an aggravated assault charge in 2016 and was sentenced to between 2 and 5 years in prison.

An obituary for Puskar says she died “as a result of an act of terrible violence.”

She is remembered as being a member of the Latrobe Ladies Auxiliary American Legion Post #515 and for loving to do crossword puzzles.