A West Point cadet who was on life support after trying to save a swimmer from a rip current at a Southampton Village beach last week has died, a hospital spokesman said Friday.

Thomas Surdyke, 18, of Festus, Missouri, was pulled from the waters at Coopers Beach last Friday after his rescue attempt, said Det. Sgt. Herman Lamison of the Southampton Village Police Department.

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Janice Laiben Surdyke, who identified herself as the cadet’s mother, posted on her Facebook page late Tuesday that she was heartbroken.

“Our son and hero, Cadet Tom Surdyke, has passed. Continuing to serve others in death as in life, Tom chose to donate his organs, thus requiring him to be on a ventilator for the next 48 hours. However, his soul is with the Lord.”

His father, Tim Surdyke, reposted his wife’s message and added: “My son, my hero.”

On Wednesday afternoon, 14 cadets dressed in fatigues and a chaplain arrived at Stony Brook University Hospital to pay their respects to Surdyke.