Untalan appears in drug, robbery investigations; AG calls Moore case a 'drug-related homicide'

Skip to main content

October 31, 2026 · Guam (ChST) Newsletters（https://guamnewsnetwork.com/newsletters）Submit a Tip（https://guamnewsnetwork.com/submit-a-tip）Search（https://guamnewsnetwork.com/search）

Public Safety（https://guamnewsnetwork.com/section/public-safety）

Untalan appears in drug, robbery investigations; AG calls Moore case a 'drug-related homicide'

By Jolene Toves（https://guamnewsnetwork.com/author/jolene-toves）

Published October 30, 2026 at 9:12 PM ChST · 5 min read

Share

Jonathan David Atalig Untalan · Department of Corrections

Jonathan David Atalig Untalan's name appears in multiple Guam Police Department investigations, including a drug case connected to the death of Nicolas Moore and two separate robbery investigations reported Oct. 26 that authorities said may be connected.

Untalan was charged Wednesday in Superior Court of Guam with possession of a Schedule I controlled substance with intent to deliver as a first-degree felony and eluding police. Co-defendant Aja Lyrick Lujan faces the same drug charge. Untalan additionally faces a separate charge alleging he committed a felony while on release in another felony case.

Attorney General Douglas Moylan said he asked Police Chief Joseph Carbullido to open an investigation into Moore's death, which he described as a “drug-related homicide.”

“That has led to these referrals from GPD for prosecution,” Moylan told Guam News Network.

Moylan confirmed the investigation into Moore remains ongoing.

Drug case

According to the complaint, GPD responded to Moore's home Oct. 7 and found a scene described as “consistent with possible drug use,” including a plastic pen tube containing burnt residue.

Moore's phone allegedly contained text messages sent to Lujan on Oct. 7, including one in which Moore asked, “Bruh, what did you give me?” His parents told investigators he had been unusually energetic and erratic the previous day, according to the complaint.

Investigators seized two round pills from the bedroom that were suspected to be alprazolam. A field test returned a presumptive “clear” result. Field tests on the pen tube were inconclusive, but the GPD crime lab confirmed the presence of fentanyl on Oct. 13, the complaint states.

Police said a search of Moore's phone under a warrant uncovered messages with Untalan from Sept. 22 through Oct. 7 that investigators allege involved drug transactions.

In a Sept. 28 exchange, Untalan allegedly asked whether Moore still wanted a “blue.” According to the complaint, the reporting officer said the term refers to fentanyl-laced pills or counterfeit oxycodone. Moore allegedly replied yes, and Lujan's email address was provided for payment. After Untalan confirmed receipt, Moore allegedly asked for “five more.”

Another exchange on Oct. 3 allegedly concerned what Untalan had “on a foil.” Later messages discussed meeting at a clinic on Oct. 5.

The complaint states Moore was on pretrial release with electronic monitoring in a separate case involving the death of Michael Castro. Monitoring records showed three clinic visits on Oct. 5 and 6 and a trip to Tumon Sands Plaza to meet his attorneys, according to the complaint.

On Oct. 6, Moore allegedly asked about Lujan's whereabouts and whether they had received “the rest of his stuff.” At 10:40 a.m. Oct. 7, hours after Moore's body was found, Untalan allegedly replied that he was not with Lujan.

Investigators also recovered a deleted photograph that allegedly showed Untalan inside Moore's vehicle on Sept. 20.

The complaint states that Homeland Security Investigations records showed Lujan made three travel reservations from Guam to Hawaii and Haneda, Tokyo, for Oct. 7 and 8. Lujan continues to be sought by police.

The messages also allegedly included Untalan seeking a gun and asking Moore whether he wanted to “help” to “catch a body.” The complaint does not explain what the exchange referred to.

The drug complaint charges the Untalan and Lujan with possession of a Schedule I controlled substance with intent to deliver. However, the alleged transactions involved substances described in the complaint as fentanyl-related, and fentanyl is classified as a Schedule II controlled substance.

Moylan confirmed Friday that “the substances are believed to be fentanyl derivatives.”

When asked why the complaint lists a Schedule I charge rather than Schedule II, Moylan said, “The Schedule I charge reflects the current state of the investigation and may be adjusted.”