FBI Call, Then Poof — Messages Gone

A Chicago man now faces federal obstruction charges after prosecutors say he helped erase evidence tied to a foiled White House UFC attack plot.

Quick Take

Federal prosecutors say Alexander Iniguez Mercado was part of Signal chat groups tied to the alleged attack plan.
Investigators say he uninstalled Signal after an FBI phone call, which made message data unavailable.
Mercado is charged with obstruction of justice and faces up to 20 years in prison if convicted.
Defense lawyers say the chat was about survivalism and camping, not terror.

Federal Case Centers on Deleted Signal Data

Federal prosecutors say Alexander Iniguez Mercado, 20, of Chicago, was an administrator and member of Signal messaging groups used to plan a violent attack on the UFC event at the White House.^[1] The indictment says an FBI special agent called Mercado the day before the event and asked about online threats. Mercado denied plans to travel to Washington, D.C., and said he did not want to meet.

Prosecutors say Mercado then uninstalled the Signal app on his phone, which made the related data unavailable.^[1] That is the heart of the obstruction charge. He is accused of knowingly altering, destroying, and concealing electronic records tied to the investigation. If convicted, he faces a maximum of 20 years in federal prison.^[1]^[3]

Authorities Say the Plot Reached Across Several States

The Justice Department says Mercado is the eighth person charged in the case, which it describes as a planned violent attack tied to the June 14 event.^[1]^[8] The broader investigation has involved claims of drones, explosives, and sniper rifles aimed at government officials and wealthy attendees. Prosecutors also say Mercado recruited others and warned a higher-level co-conspirator that the Federal Bureau of Investigation was looking into the group.^[2]

The case is still at the charging stage, and that matters. An indictment is not proof of guilt. It is a formal accusation that must be tested in court. Mercado has pleaded not guilty, and the prosecution still has to prove that he acted with criminal intent and that his deletion of the app was meant to block the inquiry.^[2]^[7]

Defense Says the Chat Was About Survivalism, Not Terror

Defense lawyers are pushing back hard. They say Mercado “freaked” after an offhand survivalism comment in the chat and that the group’s talk was about camping, not violence.^[2]^[3] That defense tries to cut into the government’s main claim: that Mercado was not just a bystander, but a helper in a violent scheme. So far, the public record still centers on the indictment, not on recovered message logs from his phone.

Alexander Iniguez Mercado, 20, faces up to two decades in prison if convicted of the obstruction of justice charge in a grand jury indictment made public Friday. He was set to appear before a federal magistrate judge later Friday afternoon. https://t.co/DHDosj9O2T

— Chicago Sun-Times (@Suntimes) June 26, 2026

That gap matters for readers who want the full picture. The available reports do not show any recovered Signal messages from Mercado’s device, and they do not show physical weapons or explosives seized from him.^[1]^[2]^[3] What prosecutors do have, at least for now, is the timing of the FBI call, the deletion of the app, and the claim that he helped run the group. What the defense has is a competing story about intent.

Why the Case Is Drawing Attention

This case has drawn attention because it mixes alleged domestic violence planning, encrypted chats, and an obstruction charge that can be easier to prove than the underlying plot. It also shows how fast federal agencies move when they think a threat is real.^[1]^[8] For conservatives who worry about lawlessness, this is the kind of case that raises a simple question: did someone try to hide evidence of a dangerous plot, or is the government stretching a chat dispute into a terror case?

That question will now be decided in court, not online. The public can expect more filings, more disputes over what the chats meant, and more pressure on the prosecution to show hard evidence. For now, the story is not a conviction. It is an accusation, a deleted app, and a federal case that could carry serious prison time if the government proves its claims.^[1]^[2]^[7]