Heartbreaking photos show Florida hiker, 31, who was killed by alligator as boyfriend desperately tried saving her

Heartbreaking photos emerged Tuesday of the Florida woman fatally mauled by an alligator while hiking with her boyfriend over the weekend.

Brittany Clark, 31, was seen smiling in a sleek red slip dress just months before Sunday’s trip turned tragic when the couple went for a swim in the Econlockhatchee River at Little Big Econ State Forest.

A giant, 12-foot gator lunged from water and clenched its jaws onto Clark as she was in just three feet of water.

Her boyfriend, identified by the Daily Mail as Chance Allison, desperately tried to fight off the beast.

Allison heroically freed her arm, but the alligator instantly clamped onto her other arm.

Frantic 911 audio captured Allison trying to stem catastrophic blood loss on the shore, her boyfriend screaming that both her arms had been severed.

Wildlife officials have since euthanized and decapitated the alligator, keeping its head as evidence.

Clark appeared to love the outdoors as her social media profiles were full of photos showing one adventure after another

This is a developing story. Please check back for updates.