University of Idaho murders suspect Bryan Kohberger may have held onto an ID belonging to one of the four killed in the shocking November stabbings, sources claimed this week.

Kohberger, 28, was arrested in Pennsylvania on Dec. 30 — six weeks after Kaylee Goncalves, Madison Mogen, Xana Kernodle and Ethan Chapin were murdered in their off-campus home in Moscow.

In addition to DNA evidence tying Kohberger to the grisly scene, an unsealed search warrant suggested police found unspecified IDs in the glovebox of the doctoral student’s car, NewsNation reported.

“It’s a big deal. That is a smoking license,” retired FBI agent Jennifer Coffindaffer told the network’s Chris Cuomo of the possible discovery, which cannot be confirmed due to a gag order on the case.

“Just like the [knife sheath] was a smoking sheath found next to [Mogen’s body] with his DNA on that clasp, it’s the same thing in this situation. Why would he have an ID related to one of those people from that house?”

Coffindaffer appeared on the network alongside trial attorney Mark Geragos, who surmised that the ID find, if true, would be “bad” for Kohberger.

The rumor that Kohberger may have kept identification of someone from the Moscow house emerged shortly after news broke that police were investigating whether the Pennsylvania native contacted one of the victims prior to the murders.

“If that’s true, why do people stalk? They stalk because they’re feeling persecuted, and this is a way that they can exact their revenge,” Coffindaffer told Cuomo.

Coffindaffer’s remarks echoed those of former FBI investigator Pete Yachmetz, who told The Post earlier this year that Kohberger may have struggled with an “incel complex.”

“I believe a continued stabbing of a victim indicates … an uncontrollable rage and extreme anger,” Yachmetz said, referring to the accused killer’s “long history of interpersonal problems.”

At the time of the killings, Kohberger was a doctoral student in criminal justice at Washington State University in Pullman, just 15 miles from Moscow.

Search warrants unsealed last month also revealed the trove of disturbing items — including a gun, several knives and a black face mask — that investigators took from Kohberger’s parents’ home following his dramatic arrest.

Kohberger, who has not yet entered a plea to four counts of murder and one of felony burglary, is in custody in Latah County, Idaho. He is due back in court on June 26.