A Florida man is set to face no charges after he defended his sister and shot her abusive ex-boyfriend to death, authorities said.

The shooting occurred last week in Silver Lake Mobile Home Park, according to a report citing the Escambia County Sheriff's Office.

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Deputies responded to the scene and discovered a 26-year-old deceased male, who they determined had died from a gunshot wound, the report noted.

The man was discovered to be the ex-boyfriend of a 24-year-old female who lived at the residence, and he had been shot after he smashed the woman's door, entered the residence, and hit her multiple times, authorities said.

The 24-year-old used her phone to contact family, including her 23-year-old brother, who rushed to her aid.

When he arrived, an argument ensued and the ex-boyfriend brandished a firearm, the report noted.

"At one point, the male that forced entry into the trailer pulled out a handgun, pointed it at her brother and cocked it," Escambia County Sheriff Chip Simmons said.

"If someone points a gun at you and cocks it, you can shoot them."

The brother was armed and fired two shots at the ex-boyfriend, killing him, according to the report.

He will face no charges, given Florida's expanded self-defense laws.

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"'Stand Your Ground' has expanded the area of the castle," Assistant State Attorney John Molchan said.

"We used to have the 'Castle Doctrine,' which said that your home was your castle and that you could use deadly force to defend yourself from a murderer or a person committing a forcible felony."