The case took a strange twist a week later. According to police reports, Abrahamson’s wife, Linda, had helped police by unlocking her husband’s phone.
One email showed an order he placed on Dec. 25 for a 40-cubic-foot weather balloon, the Post reported.
That led one detective to suggest a strange theory.
“Det. (Bryan) Broehm theorized that it possibly was not a homicide, but possibly a suicide,” according to the investigation report. “That he tied a gun to a string, and attached it to the weather balloon, and once the shot was fired the weather balloon ascended carrying the weapon from the scene.”
Police researchers found two examples that were similar to Abrahamson's case, the Post reported. In 2008, a man tried to fake his murder by using a bundle of helium balloons, but his gun was carried into a cactus near his body.
The other example was more plausible, coming from a 2003 episode of "CSI: Las Vegas."
On Feb. 5, police returned to the site where Abrahamson was found. Near a wall, they found rubber bands and some knotted string. The next day, a forensics investigator found a thin, straight trail of blood leading from Abrahamson’s gunshot wound toward his shoulder, indicating that something had dragged the blood to the top of his shirt, according to the forensics report.
A detective contacted the online company that Abrahamson bought the balloon from, the Post reported.
“I asked (the owner) how far a 600-gram balloon can travel,” the detective wrote in his report. “He advised me he launched a balloon on Monday in Huntsville, Alabama, and 18 hours later it burst in the Atlantic Ocean off the coast of New Jersey.”
In March, detectives contacted Abrahamson's family and said the case was closed and ruled a suicide, the Post reported. The police's final report was released this week, and a spokesman would not speculate on what Abrahamson's motive might have been, the newspaper said. The family has not commented.