Luigi Mangione trial date dispute emerges as defense calls Manhattan DA's proposed July 1 start date "unrealistic" due to conflicting federal trial in Brian Thompson case.

As the search for UnitedHealthcare CEO Brian Thompson's killer enters its sixth day, police are using cutting-edge technology to zero-in on his identity and whereabouts. Artificial Intelligence, drones and DNA analysis are all playing a critical role in the ongoing manhunt for the'brazen' assassin who shot Thompson, 50, in broad daylight Wednesday. AI-powered facial recognition software is being used to analyze CCTV and other images of the killer from the days around the shooting and cross-reference them with NYPD databases of known individuals. This database includes'lawfully possessed arrest photos' which the AI compares to photo and video evidence from the investigation. The department also has use of more than 100 drones for surveilling the more than 450-square-mile city.

NEW YORK – The masked gunman wanted in connection with the ambush shooting death of UnitedHealthcare CEO Brian Thompson Wednesday morning fled the crime scene using various modes of transportation before police believe he got on a bus out of the Big Apple, authorities told Fox News. Police traced his route from the crime scene near 54th Street and Sixth Avenue up to Central Park, which he exited at 77th Street and Central Park West, Chief of Detectives Joseph Kenny told Fox News Friday. Kenny's boss, new NYPD Commissioner Jessica Tisch, added that investigators have picked up an abundance of video and digital evidence in addition to physical evidence they hope can lead them to the killer. "We actually have a tremendous amount of forensic evidence in this case that we've collected- DNA evidence, fingerprint evidence, which is all at the lab now being processed," she told Fox News Friday. This undated photo provided by UnitedHealth Group shows UnitedHealthcare chief executive officer Brian Thompson.

Surveillance video shows the suspect in the shooting of UnitedHealthcare CEO Brian Thompson on a bicycle near West 85th Street in Manhattan after the killing. The speculation regarding the shooting of UnitedHealthCare CEO Brian Thompson continues to run rampant. While this can be interesting, the truth is that the on-the-ground investigation will be far more prosaic than glamorous. It can be a daunting amount of information. As such, let's look at some hard data points that are likely jumping-off points for investigators who have to play the percentages (and some that are not): The idea that someone off the street can walk into a social club or call-a-guy-who-knows-a-guy who kills for a living is essentially a myth – I cannot recall one in my experience.