The case against Amanda Rupp separates allegations of lethal intent, severe injury and robbery arising from one late-night confrontation.
WEST PALM BEACH, Fla. — A late-night confrontation that left a bicyclist hospitalized has produced several distinct felony allegations against Amanda Faye Rupp, with police accusing the 42-year-old woman of attempted first-degree murder, robbery with a deadly weapon and aggravated battery.
The charges reflect different parts of what West Palm Beach police say happened near 47th Street and Broadway beginning shortly after midnight Sept. 20. The 34-year-old victim told investigators that he had stopped near a Walgreens because his bicycle tire was flat when a woman approached him. He said the encounter escalated into a knife attack and an effort to take his property. Police later identified Rupp as the suspect after reviewing surveillance footage and speaking with witnesses. She has disputed the victim’s version of events, and none of the accusations has been proven in court.
The attempted first-degree murder allegation places the issue of intent near the center of the prosecution. Florida law defines first-degree premeditated murder as an unlawful killing carried out with a premeditated design to cause death. Because the victim survived, Rupp is accused of an attempt rather than a completed homicide. Public reports describing the arrest affidavit say the man told detectives that his attacker threatened to kill him while stabbing him. Police also alleged that the assault continued after the victim had already suffered serious injuries. Those assertions may become part of the state’s effort to establish intent, but the prosecution would still have to prove its case beyond a reasonable doubt.
The robbery allegation addresses a different question: whether force or violence was used in connection with an attempt to take property. Florida law defines robbery as the taking of money or other property from another person, with intent to permanently or temporarily deprive the person of it, when force, violence, assault or fear is used in the course of the taking. When a deadly weapon is carried during a robbery, the statute classifies the offense as a first-degree felony punishable by a term that can extend to life imprisonment. A charge is not a sentence, however, and no punishment applies unless there is a conviction.
Police reports describe more than one piece of property as part of the alleged confrontation. The victim said Rupp tried to take his phone when she first pulled the knife, according to local reporting based on the arrest document. Investigators also alleged that she later pulled his bicycle away as he tried to leave the area. Surveillance footage was cited as supporting the allegation that the struggle over the bicycle continued after the stabbing. Whether prosecutors rely on the phone, the bicycle or both in proving the robbery charge will depend on the evidence and charging documents presented in court.
The aggravated-battery accusation focuses more directly on the injuries and the alleged use of a weapon. Florida law says aggravated battery can occur when a person committing a battery intentionally or knowingly causes great bodily harm, permanent disability or permanent disfigurement, or uses a deadly weapon. Police said the victim suffered a serious abdominal stab wound and major damage to his nose. Reports citing the arrest affidavit said he underwent an abdominal procedure to stop internal bleeding and reconstructive surgery on his nose after being taken to the hospital.
Physical evidence described by investigators underscored the severity of the injuries without resolving who was legally responsible for causing them. Police said part of the man’s nose was recovered at the scene. Reports also described a substantial amount of blood where the confrontation took place. Those facts establish that a serious injury occurred, but a criminal prosecution must prove more than the existence of an injury. The state would have to connect Rupp to the alleged acts and establish the required mental state for each offense, while the defense can contest identification, intent, causation and the interpretation of the evidence.
The victim’s account supplied the initial narrative. He told police that his bicycle tire had gone flat and that he was sitting nearby when a woman asked him about it. He said she then produced a small kitchen knife, tried to take his phone and threatened his life before stabbing him. Security officers later encountered the injured man and summoned help. Police eventually interviewed him at the hospital. The publicly available reports do not identify him by name, and no detailed update on his condition after the reported surgeries was located in the material reviewed for this article.
Rupp’s account pointed investigators in the opposite direction. She alleged that the man had robbed her of $15 and, according to another report describing her police interview, said he had proposed exchanging his bicycle for sex before attacking her when she refused. She portrayed herself as having been victimized during the encounter. WPBF reported that Rupp admitted confronting and kicking the man. Police said they did not accept the assertion that he had been the aggressor after comparing her statement with the other evidence they gathered.
Surveillance footage was a major reason investigators gave for that conclusion. Police reviewed recordings from nearby businesses showing portions of the encounter around 4715 Broadway Ave. Reports on the affidavit said the video appeared to show Rupp standing over the victim, then walking south along Broadway with a knife while blood was visible on her arms. Investigators said she later returned and continued striking the man while trying to take his bicycle. The footage was described in one report as dark and pixelated, meaning it did not provide an unobstructed record of every movement during the original struggle.
That limitation could become significant if the case turns on competing interpretations of the encounter. Video evidence can corroborate where people were and what they appeared to do, but unclear images may leave room for disputes about timing, sequence and what happened outside the camera’s field of view. Prosecutors can seek to combine the footage with witness accounts, medical evidence and statements to investigators. Defense attorneys can challenge the clarity of the images, the reliability of witnesses and the conclusions police drew from them. The arrest affidavit represents investigators’ probable-cause account, not a judicial determination that the accusations are true.
Witnesses also helped investigators build the chronology. Security officers initially reported finding the injured victim near 47th Street and Broadway. WPBF said the victim at first reported that two women had tried to rob and assault him. Other witnesses told police that he had been with two women before the attack after the group was asked to leave a nearby business. The public reports reviewed for this article do not establish that the second woman was charged in the stabbing. Police ultimately identified Rupp as the person they believed had carried out the knife attack and later arrested her near 49th Street and Broadway.
A possession-of-drug-paraphernalia allegation was also reported among the charges tied to Rupp’s arrest, though the public accounts reviewed provide little detail about the factual basis for that count. Because the central police narrative concerns the stabbing, injuries and attempted taking of property, the paraphernalia accusation is legally separate from the more serious violent-crime allegations. No verified public material reviewed for this article establishes that drug use caused the confrontation or explains Rupp’s alleged conduct, and such a motive should not be inferred from the existence of a paraphernalia charge.
The case therefore requires prosecutors to prove several related but distinct claims arising from one episode. Evidence of severe injury may support an aggravated-battery theory without automatically proving an intent to kill. Evidence that someone tried to take a bicycle may be relevant to robbery without itself proving attempted murder. A reported death threat may bear on intent but still must be evaluated with the circumstances and other evidence. Treating the counts separately is important because Rupp’s legal responsibility, if any, must be determined under the requirements of each offense rather than from the seriousness of the incident alone.
Reports published after the arrest said Rupp was being held without bond at the Palm Beach County Jail and had an appearance scheduled for Oct. 22. Public reporting reviewed through Nov. 8 did not establish the outcome of that scheduled court date or show that the charges had reached a final resolution. Rupp remains presumed innocent unless proven guilty, while the victim’s longer-term medical condition has not been detailed in the reliable public material reviewed for this article.
Author note: Last updated November 8, 2026.