Police were immediately called, and it did not take long for Stacy's death to be ruled a homicide. Despite this ruling, there were still many unanswered questions. A murder weapon was never found, and the medical examiner never conducted an autopsy on Stacy's body. Investigators did have a few leads, though. It was learned that Stacy was on the phone shortly before his death, hence the phone found inches away from Stacy's body. It was later revealed that Stacy was on the phone with a friend named Jeff Brewer. He reportedly told Jeff that he was "worried about something and needed advice." However, before Stacy could elaborate, a car pulled into the driveway of Stacy's home. Not much else has been revealed about what Jeff might have potentially heard during the phone call, and Jeff has since passed away.
The case went cold seemingly fast. Police took another look at it during the early 2000s, but nothing ever came of it. Judy Dillon stated that she eventually came to acceptance with the fact that her son's case remained unsolved; she felt the police had botched the investigation. It would be years before the case would finally be reignited.
|Judy Dillon (right) and a picture of Stacy (timesfreepress)|
Finally, in 2011, the case was re-opened with a new team of detectives. From that investigation, it was revealed that Stacy reportedly "had to keep parts of his life a secret from his extremely conservative home town." In fact, investigators stated that they believe Stacy's murder was personal--potentially committed by a male with whom Stacy was in a relationship. There was no sign of forced entry at the Dillon home, which suggests that Stacy was killed by a person he knew.
This theory was also investigated in the initial stages of the case, particularly the aspect that Stacy might have been involved in a secret relationship with a male--but Judy Dillon denied--and still denies--that her son was gay. This theory was revisited when Stacy's case was re-opened in 2011. Investigators were also able to identify a person of interest...he happened to be the same person of interest who had been questioned by police 20 years earlier. Said person has never been publicly identified.
Detectives working the case after it was re-opened also noted that there was mention of a confidential informant named 'Becky' in the previous files on Stacy's murder. 'Becky' reportedly saw one of the suspects on the night of the murder. At this time, the new investigators are unaware of Becky's true identity, but they are hoping to identify her and speak with her.