Utah college student agreed to kill girlfriend to 'relieve her suffering' in suicide pact. But, only one of them died.

A college student in Utah is accused of murder after a botched suicide pact, police said.

The suspect told police that he injected the victim with heroin to “relieve her suffering” and then tried to kill himself, but he survived, according to media reports.

On Feb. 11, the University of Utah police sent information to Salt Lake City police about a man who made threats to kill his girlfriend. Around 6 a.m., Salt Lake City police responded to a motel to conduct a welfare check.

When police went into the room, they found 26-year-old Haoyu Wang and a 19-year-old woman, who was unresponsive, according to Salt Lake City police.

Officers took Wang into custody and tried to give first aid to the victim. When paramedics arrived, they declared the unidentified woman dead, according to police.

Wang told police he killed the woman and then tried to kill himself by taking drugs, according to reports.

Wang went to the hospital and told officers he and his girlfriend intended to commit suicide together. He said he ordered the drugs on the internet, and both snorted it, according to media reports.

Police wrote in an arrest affidavit that Want wanted to “relieve her suffering” and he injected her with drugs, the reports noted.

Wang was arrested and booked into jail on a charge of murder.