A cruise vacation took a horrifying turn when a woman was found dead aboard the MSC Seascape, triggering a federal murder investigation that followed the vessel back to Galveston, Texas.

Jason Leon Watford, 48, is facing a federal murder charge in connection with the woman's death Sunday, according to court documents. The ship returned to Galveston on Monday morning, where authorities took Watford into custody as investigators began piecing together what happened behind the closed doors of a cruise ship cabin.

The allegations are chilling. According to a criminal complaint filed Monday, Watford told FBI investigators that he struck and choked the woman after an argument aboard the vessel.

The FBI confirmed Monday that agents from its Texas City office were investigating the death aboard the MSC Seascape.

Galveston Cruise Ship Murder: What Investigators Say Happened

According to an affidavit filed in federal court, Watford told investigators that he and the woman boarded the MSC Seascape on Sunday.

The pair later became involved in an argument while eating at a restaurant aboard the ship. What began as a dispute allegedly followed them back to their cabin, where the confrontation escalated.

Watford reportedly told investigators that he returned to their room first, with the woman arriving shortly afterward. The argument continued, and he allegedly said he "snapped."

FBI Affidavit Details Alleged Attack Inside Cabin

Investigators said Watford admitted to striking the woman multiple times, leaving her bleeding from the mouth.

The affidavit describes an alleged escalation from physical blows to strangulation. Watford reportedly told investigators that he used both hands to choke the woman before wrapping his right arm around her neck from behind while she was lying down.

According to the affidavit, Watford allegedly applied pressure to the woman's neck for approximately four to five minutes.

He eventually released his grip, investigators said, because he was exhausted.

But the alleged violence was only part of the disturbing account.

The affidavit states that Watford told investigators the woman remained motionless on the floor for roughly 10 minutes before a housekeeper knocked on the cabin door.

Investigators said Watford did not contact the ship's security team or medical personnel while the woman lay motionless.

The details paint a grim picture of a confrontation that unfolded far from shore, inside a cabin where the alleged victim had little chance of escape.

Federal Authorities Take Suspect Into Custody

Federal officials took Watford into custody Monday with assistance from Port of Galveston police.

He was initially held at a federal facility inside the cruise terminal before being transferred to the Galveston County Jail, where he remains under a federal hold.

Watford is reportedly from Tyler, Texas.

The FBI's Texas City office is leading the investigation into the woman's death, with federal court documents outlining the allegations against the suspect.

Watford Faces Life in Prison if Convicted

Watford is expected to make his initial court appearance in Galveston at 1 p.m. Tuesday.

If convicted of the federal murder charge, he faces a potential sentence of up to life in prison and a $250,000 fine.

The case remains under investigation, and the allegations outlined in the criminal complaint have not yet been tested at trial.

As federal investigators continue examining the circumstances surrounding the woman's death, the MSC Seascape's return to Galveston has transformed what should have been the end of a cruise into the beginning of a major criminal case.