Overview

• Newly released building surveillance from Rebecca Towers shows resident John Gula confronting property manager Amelia Sola Ortiz before stabbing her in a 10th‑floor hallway on Aug. 4.
• Investigators say the encounter followed notification that Gula’s apartment had failed an inspection and concerns about the unit’s condition.
• Police used internal CCTV to track Gula to his girlfriend Rosinda Arellana’s apartment, where they detained him and noted blood on his shoes.
• Gula is charged with attempted second-degree murder, has invoked his Fifth Amendment right, and remains at Metrowest Detention Center without bond.
• Ortiz was transported to Ryder Trauma Center and, according to residents, is recovering at home.