In a quiet home on Highland Park Drive in Baton Rouge, Louisiana, a tragedy unfolded that would only be discovered days later. Maria Marcello, a 34-year-old woman, was found deceased on June 26, 2018, in what authorities would later rule a murder-suicide. Her husband, 36-year-old Thomas Marcello, was also found dead at the scene. Concern grew among friends and family when they were unable to contact the couple for several days.
This led a family member to visit their home, where the grim discovery was made. Maria was found lifeless on their bed, while Thomas was on the floor in the same bedroom. Both had sustained fatal gunshot wounds from a handgun.
The subsequent investigation by the Baton Rouge Police Department painted a sorrowful picture of the events that transpired. Detectives found no signs of forced entry into the home, and neighbors reported no unusual disturbances around the time the incident was believed to have occurred. The evidence pointed towards Thomas Marcello as the perpetrator in a tragic murder-suicide. A suicide note left by Thomas was discovered at the scene, which supported the investigators' conclusion. In the note, it is believed he stated that he mistook his wife for an intruder before taking his own life.
Further investigation into Thomas Marcello's background revealed a history of mental health struggles. It was discovered that an order of protective custody had been issued for him in May of 2016, indicating that his mental health issues were known to authorities. Given that the sole suspect in Maria's death was deceased, there were no arrests made in the case. The investigation was concluded, with the evidence supporting the determination of a murder-suicide stemming from Thomas Marcello's mental health challenges.