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Gregory Little, Jr., 32, died from several gunshot wounds Sunday morning outside the Royal Hookah Bar and Lounge in Lincoln, Nebraska, according to police.

The mother of a Nebraska father of 10 killed by a security guard outside a bar is vowing to get justice, adding that he was gunned down on the sidewalk "like a rabid dog."

Gregory Little, Jr., 32, died from several gunshot wounds Sunday morning outside the Royal Hookah Bar and Lounge in Lincoln, Nebraska, according to police. 

Authorities said Little was involved in a brawl with other patrons outside the establishment over a dispute about line cutting, prompting security from the bar to intervene.

A 24-year-old male security guard fatally shot the victim multiple times in the arm and chest.

But his sister, Kelyna Taylor, remembers the chain of events leading up to her brother's death, differently. 

"My brother had dropped his phone," Kelyna, who was with Little that night, recalled during a vigil for her late brother, according to KLKN-TV. "He reached for his phone, and then the security guard shot him." 

"They shot him down like a rabid dog," Little's mom, Vernadine Taylor, added. "One bullet put him down. Why did you shoot him three more times?"

"I just need justice for my son," said Vernadine. "And I will get justice if it takes the last penny of my life. Until I die, he will get justice."

Little – a father of 10 – owned soul food truck Lula Mae's Kitchen, where he frequently fed the less fortunate for free, according to loved ones. 

"He's a family man, a loving man, and he's a good person," Little's stepfather, Terrence Tucker, told the station. 

Meantime, Kelyna said her "heart is broken in a million pieces," as she struggles to cope with her sibling's slaying. "I don't know how to go on without my brother."

Police said several people were taken into questioning following the shooting. No arrests have been made.