A young mother has revealed the horrific last moments of her twin girls' lives when her boyfriend shot them both dead, along with their grandfather.

Megan Hiatt, 22, is recovering in a Jacksonville, Florida, hospital after Gawain Wilson, 28, blasted their five-month-olds and then turned the gun on her father Travis Hiatt, 49, before taking his own life.

Police said there are five victims with one in critical condition. Police received a call of shots fired just before 4 p.m. on Tuesday. When they arrived, they found all the victims had gunshot wounds.

'Mama, he killed them. He killed them in my arms. He made me hold them when he killed them. He made me watch,' Melissa Batch said, recounting her daughter's words to her from her hospital bed.

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Megan Hiatt, (left) 22, has opened up about the moments her boyfriend Gawain Wilson, (right) 28, told her to hold their five-month old babies (left) as he killed them. Wilson also shot her father and later himself

Hiatt says that she crawled across the bloody room to hear the dying words of her father, who passed on his love to her twin brother. Above, the grandfather holds the babies that the family called Reese and Rose

Bateh said that the family called the infants 'Chunky Monkey' Reese and 'Little Bit' Rose, though their names were actually Hayden and Kayden.

She told First Coast News that five bullets hit her daughter, but credited God with helping her survive.

'He gave Megan the strength to drag her body across the room. She had to crawl through her babies' blood, then through the shooter's blood, and to her dad to hear his last words,' the grandmother said.

Travis Hiatt reportedly told his daughter to pass on to her twin brother that he loved him.

Hiatt and Wilson's relationship was reportedly troubled, though they had welcomed the babies into the world five months ago

Megan Hiatt and Wilson's relationship was reportedly troubled, and police said the killings most likely stemmed from a domestic issue, according to News 4 Jax.

Bateh said Wilson would break items around the house when he turned angry but had not hit her daughter.

He pleaded guilty to strangulation in 2013 and went to a domestic violence program.

A GoFundMe account raising money for Hiatt said that the mother was in stable critical condition on Tuesday after fighting for her life in the aftermath of the Friday attack.

She needed three surgeries on Friday and Saturday.

The page had raised more than $14,000 towards funeral expenses and medical costs as of Tuesday night.

The National Suicide Prevention Lifeline is 1-800-273-TALK

The National Domestic Violence Hotline is 1-800-799-7233