A man sustained a broken leg and other injuries in the August incident at his apartment near The Gardens Mall.

PALM BEACH GARDENS — A suburban Jupiter woman has become the third person arrested in an armed home robbery Aug. 5 that left a Palm Beach Gardens man with a broken leg and other injuries, according to an arrest report.

Katheryn B. Brush, 21, is charged with robbery with a firearm, grand theft between $300 and $5,000 and aggravated battery causing bodily harm or disability. Brush was ordered held without bail on the robbery with a firearm charge by Circuit Judge Ted Booras during a court appearance Thursday morning. She pleaded not guilty to each of the three charges.

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Brush and Bailey Brittain, 19, allegedly made arrangements to meet a 46-year-old man at his residence on Periwinkle Court, in the Mira Flores apartment complex just north of The Gardens Mall.

After arriving at the home, Brittain excused herself supposedly to get her cellphone from her vehicle, the report said. When Brittain returned, she was accompanied by Jared Nicolas Piccirilli, 22, of Jupiter.

Piccirilli and Brittain allegedly attacked the man, leaving him with injuries that required surgery at St. Mary's Medical Center in West Palm Beach, according to the report.

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Brittain, who was arrested Aug. 7, told investigators she and Brush planned to rob the victim of cocaine but did not intend to hurt him. Brittain has pleaded not guilty to robbery with a firearm and to aggravated battery and is being held under house arrest.

Piccirilli, arrested Aug. 29, remains in the Palm Beach County Jail where he is being held without bail. Piccirilli has pleaded not guilty to charges of robbery with a firearm and to aggravated battery and has a case status check scheduled for Jan. 22.

Charges of grand theft have been dropped against Brittain and Piccirilli.

Text messages available on the arrest report details conversations between Brush, Brittain and Piccirilli as they planned the robbery.

Scott Skier, Brush's attorney, filed a motion Thursday asking that his client be granted a bond on the robbery with a firearm charge. Skier wrote that Brush's role in the robbery was "the least of the 3 codefendants" while adding she did not possess the firearm or strike the victim.

The court filing also points out that Brittain was allowed out of jail on house arrest even though she hit the victim and has prior felony arrests. Brush has no arrest history in Palm Beach County.