An autopsy was scheduled to take place Tuesday on the body of a 32-year-old man found shot to death in a Midway-area apartment Monday morning, according to San Diego police investigators. Though the circumstances surrounding the shooting are “a bit suspicious,” it is not yet clear whether the man — whose identity has not been released pending notification of family — was the victim of a suicide, accidental shooting or a homicide, said Lt. Kevin Rooney of the police department’s homicide unit. No arrests have been made. The county Medical Examiner’s Office is soon expected to send the autopsy results to investigators, who will then conduct an independent round of tests to establish the nature of the shooting, Rooney said. Meanwhile, homicide investigators spent a majority of the day and into the night Monday collecting possible evidence and studying the scene of the ground-floor shooting at Stonewood Garden Apartments in the 3800 block of Midway Drive, Rooney said. Police were called to the scene shortly after 9 a.m. when neighbors reported hearing a disturbance and the sound of a possible gunshot. After a brief search, officers located the body inside the apartment of the dead man’s girlfriend, said Rooney. The woman had been spotted leaving the scene with a second man after the shooting, Rooney said. She was not at the apartment at the time officers arrived, but apparently drove about a mile away and called 9-1-1 about 10 minutes after the initial reports. “The fact that she left and the fact that we developed information about a second party present essentially cast a cloud over the situation and made us wonder,” Rooney said. “It just seemed a bit suspicious, so that’s why I assigned out our homicide team.” Rooney declined to identify the woman or the second man because of the ongoing investigation and pending autopsy and lab results. Anyone with information that may be helpful to the case is urged to contact the San Diego Police Department’s Homicide Unit at (619) 531-2293.