On the afternoon of March 20, 2023, 20-year-old Osvaldo Hernandez Castillo was found dead in the driver’s seat of his car near 24th Avenue and Mission Lane in Phoenix. First responders arrived after an unknown trouble call and discovered Hernandez Castillo with gunshot wounds; he was pronounced dead at the scene. An autopsy later confirmed he had been shot from behind, with wounds to his head and back.

For eight months the case had no arrests. Investigators later linked the killing to a separate homicide probe. While examining a suspect’s cellphone in November 2023, detectives recovered video evidence showing Hernandez Castillo’s shooting. Authorities say he was lured via Snapchat under the pretense of a sexual encounter; prosecutors allege the meeting was arranged so the shooter could rob him for money, marijuana, and gang recognition. When Hernandez Castillo apparently tried to hide his phone, the shooter shot him twice.

On December 7, 2023, police questioned 21-year-old Leonardo Santiago, who admitted to communicating with, shooting, and recording the killing. He was charged with first-degree murder. Did anyone in the Phoenix area see or hear anything around 24th Avenue and Mission Lane on March 20, 2023 that could help fill gaps in the timeline?