A family friend told 911 dispatchers she heard Brian McGann Sr. plead for his life during the assault.
LAKE WORTH, Fla. — A woman listening by phone from another part of Florida helped lead deputies to a fatal attack that ended with Brian McGann Jr. receiving a 38-year prison sentence for killing his father.
The call became the central thread in a Palm Beach County case that moved from a first-degree murder arrest in 2024 to a second-degree murder plea in May 2026. Investigators said the woman, a longtime family friend, heard Brian McGann Sr. say, “Stop, you are killing me,” before she hung up and called 911. Deputies later found the elder McGann dead inside his home.
The witness had spoken with McGann Jr. for hours on Feb. 4, 2024, according to the probable cause affidavit. She told investigators that he sounded increasingly frantic as the day went on. At one point, she said, he told her to pack her things and leave because “he was going to be dead.” The statement alarmed her, in part because she lived in Middleburg, far north of Palm Beach County. She also said McGann Jr. claimed he was being chased by law enforcement, then later admitted that was not true. By late evening, she told detectives, he said he was leaving a Wellington bar and pulling into his father’s home.
The next call changed the nature of the case. The woman said she heard McGann Jr. screaming at his father, followed by slapping noises and a struggle that grew more violent. She told detectives the call lasted about 20 minutes. During the chaos, she asked about McGann Sr.’s condition. McGann Jr. answered, “He is under my foot,” according to the arrest report. She also told deputies that she heard McGann Jr. ask for the combination to his father’s safe. The words and sounds she described became part of the evidence used to support the murder charge after deputies arrived.
Palm Beach County sheriff’s deputies were dispatched shortly after 11 p.m. to the home in suburban Lake Worth. When they got there, they saw McGann Jr. jump a back gate and move into a neighboring yard, according to investigators. Deputies searched the area and found him hiding nearby. They said he was completely covered in blood, including on his face, hands, feet and clothing. His hands were swollen, and he had cuts on one hand and between two fingers. Deputies later said those injuries appeared consistent with a violent physical struggle. McGann Jr. was detained before deputies went inside the home.
Inside, deputies found McGann Sr. on the living room floor. His clothing was soaked in blood, his face was severely swollen and bruised, and blood was visible on walls and furniture around him, investigators said. Paramedics pronounced him dead at the scene early Feb. 5, 2024. The Palm Beach County Medical Examiner’s Office determined that he died from blunt force trauma and ruled the death a homicide. The arrest paperwork did not specify a weapon, and public summaries of the case described the fatal injuries as the result of a beating. The home’s living room, the nearby yard and the phone call all became key parts of the case file.
The family friend also gave detectives a possible motive, though prosecutors did not have to prove every part of that account at sentencing. She described McGann Jr. as a delusional conspiracy theorist and said he had recently started using cocaine. She told investigators he was upset with his father because he had learned that the elder McGann received a vaccine. The public records cited in local reporting did not identify the vaccine. That gap remained unresolved in public accounts even after the guilty plea. The allegation helped explain why investigators looked closely at McGann Jr.’s state of mind in the hours before the attack.
McGann Jr. was first held without bond on a first-degree murder charge. The case moved through Palm Beach County court for more than two years before the plea hearing. In May 2026, he accepted a second-degree murder charge, a lesser count than the one he initially faced. Circuit Judge Sarah Willis sentenced him to 38 years in state prison and credited him with 830 days already served in the Palm Beach County Jail. The plea avoided a trial that would likely have focused on the witness’s phone account, the condition of the victim’s body, the blood evidence and the defendant’s conduct when deputies arrived.
The structure of the case was unusual because the first detailed report of the attack came from outside the home. The caller did not see the beating, but investigators said she heard enough to describe the victim’s plea, the defendant’s statements and the sound of a prolonged assault. Her 911 call sent deputies to the scene while the events were still fresh. When deputies found McGann Jr. nearby, the blood on his body and injuries to his hands added physical evidence to the witness account. The discovery of McGann Sr. inside the home then confirmed that the emergency call had involved a fatal attack.
The sentencing brought legal finality but left some public questions unanswered. Records did not identify the vaccine mentioned by the witness. They also did not explain what was inside the safe that McGann Jr. allegedly asked about during the call. The public case record centered instead on the beating, the witness’s account, the medical examiner’s finding and the plea to second-degree murder. The judge’s sentence placed McGann Jr. in prison for decades and ended the trial court phase without testimony from witnesses in open court.
The case now moves from courthouse record to prison sentence. McGann Jr. has been credited for time served since his arrest, and state corrections officials will oversee the rest of the 38-year term.
Author note: Last updated June 16, 2026.