Guillermo Graniela, 30, was found dead on August 29, 1981, in the basement of a Bronx building at 417 Bronx Park Avenue. His hands and feet were bound with rope and another rope was fixed around his neck. A screwdriver was jammed into the knot and used as a lever to tighten the ligature until breathing stopped, a method described by investigators as deliberate and designed to constrict further with every twist.

Detectives linked the killing to Jesús Aguilera, a Cuban-born man who arrived during the Mariel exodus in 1981. Aguilera was connected to other attacks that used restraints and improvised tightening devices; a surviving woman’s report of a similar binding led to his conviction for first-degree robbery. He was arrested on February 16, 1982; interrogations produced written and videotaped statements in Spanish, and later that year he was tried in Bronx Supreme Court and convicted of second-degree murder in the Bronx case tied to Graniela’s death.

The conviction rested in part on Aguilera’s admissions and the pattern of restraint-and-strangulation methods linking cases. Years afterward, his name remained associated with other violent crimes from that period and prosecutors pursued additional decades-old charges adding to his prison time. Did anyone who knew Graniela or had connections to 417 Bronx Park Avenue in 1981 see anything suspicious that night?