Boulder County Sheriffs Office
"Boulder County, Colo. - After nearly five decades of investigation, new developments in the 1975 homicide case of John Curtis Patterson have provided decisive evidence that conclusively links Louis Jess Locicero to the crime.
On September 29, 1975, Boulder County Sheriff’s Office deputies were dispatched to the 4500 block of N. Broadway in Boulder on the report of a deceased male. Upon arrival, deputies found 20-year-old John Curtis Patterson, a clerk at the Cascade Service Station, deceased in a restroom at the gas station. Patterson had suffered a fatal stab wound to the chest.
Two unfired .30 caliber cartridges were also found on the floor of the bathroom near Mr. Patterson's body. They bore extractor marks and indications of "light hits" on the primers. The cash register was found open, and the cash was missing, indicating robbery as the likely motive.
The investigation led to 32-year-old Louis Jess Locicero, a suspect with a criminal history, including robbery, burglary, drug, and weapon charges. He was staying at a nearby motel, in the 4500 block of Broadway in Boulder, around the time of the murder. Key evidence found in Locicero’s motel room, including a .30 caliber M1 carbine firearm, a knife that matched the victim's wound, and fibers from Patterson’s shirt found on the knife and in the sheath, and hairs found on Locicero’s boots matched hair from Patterson's head all pointed to his involvement in the crime.
Detectives interviewed Locicero along with countless others and ultimately arrested Locicero in 1975, however, he was released for unknown reasons prior to charges being filed. Sheriff detectives have continued the investigation and followed leads over the decades. Unfortunately, detectives had not been able to develop new leads after reviewing the evidence and interviewing potential witnesses, until recently.
Despite previous challenges in definitively connecting Locicero’s firearm to the crime a breakthrough recently occurred. The Boulder County Sheriff’s Office was evaluating the Ballistics IQ device from Evidence IQ which linked the cartridges found at the murder scene and cartridges found in Locicero’s nearby hotel room to a single firearm — Locicero’s .30 caliber M1 carbine. Evidentiary items were later sent to Ballistics IQ for evaluation by ballistics experts, which ultimately confirmed these findings. This evidence now conclusively links Locicero’s weapon to the crime scene.
Though some aspects of the case remain unconfirmed, there is now significant evidence to indicate Locicero committed the crime, and probable cause exists to arrest him if he were alive today, however Locicero died in 2024. The Boulder County District Attorney’s Office reviewed the case and concluded the evidence establishes proof beyond a reasonable doubt Locicero committed the murder. The District Attorney’s Office provided a letter documenting their findings that if Locicero were alive today, he would be prosecuted for the robbery and the murder of John Patterson.
"This is why the Boulder County Sheriff's Office spends time investigating cold cases like this, to see if something was missed and to see if, with new technology, new leads can be found. The Boulder County Sheriff's Office wants the families to know their loved ones have not been forgotten," said Detective Don Dillard.
Commander Jeff Pelletier said, “I take pride in the work of those in our agency and the reality that our agency is willing to be a champion for technology and its’ involvement in solving cases, particularly cold cases, bringing closure to those who have had to wait. I’d also like to thank the team at Evidence IQ for their willingness to be part of closing this case and performing expert analysis in such a timely fashion.”
District Attorney Michael Dougherty stated, “In our jurisdiction we work very closely with law enforcement to secure justice for victims and our community. As this investigation by the Sheriff’s Department demonstrates the quest for justice is something we will always pursue. I’m very grateful to the Sheriff’s Office for continuing to investigate this tragic murder and using new technology to provide answers for the victim’s family and our community. Our office reviewed this investigation and with this new evidence we would have been able to file charges in this case.”
The associated Boulder County Sheriff’s Office case number is 75-04014."
New Ballistics Technology and Forensic Findings Lead to Closure
- Colorado