Five months before a U.S. Army reservist shot dead 18 people at a bar and bowling alley in Lewiston, Maine, his family contacted the sheriff's office to say they were concerned about a decline in his mental health and that he had access to at least 10 guns.

A second report came through in September when Robert R. Card's Army Reserve unit in the nearby town of Saco emailed the Sagadahoc County Sheriff's Office requesting a "wellness check" on Card, Sheriff Joel Merry said in a statement on Monday.

The Reserve unit told the sheriff's office that Card, a 40-year-old sergeant, had reported "hearing voices" that tormented him with accusations of pedophilia and of having a small penis and that he had threatened to "shoot up" the military facility, according to an incident report released by the sheriff's office.

At least one soldier who was friendly with Card told his seniors that his speech and conduct were so alarming that he feared that "Card was going to snap and commit a mass shooting," according to the Army Reserve unit's September email released by the sheriff's office.

On October 25, Card killed 18 patrons and wounded 13 at two Lewiston venues in the 10th-deadliest mass shooting in a country where gun violence has become common. After a two-day manhunt, police found Card dead with a self-inflicted gunshot wound in a trailer at a recycling plant where he used to work.

In a statement to the New York Times, the Army Reserve said it had reached out to the sheriff's office about Card "out of an abundance of caution after the unit became concerned for his safety."

As in many U.S. states, guns are lightly regulated in Maine, and no permit is required to buy or carry one. However, in 2022, the state passed a so-called yellow flag law that allows police to petition a court for an order allowing them to temporarily seize guns from a person who a medical practitioner has deemed may be in danger of hurting themselves or others.

Law enforcement has said Card was committed to a mental health facility in July for two weeks. His ability to carry out a massacre has raised questions about the efficacy of the state's gun regulations and where the limits lie in a 2022 U.S. Supreme Court ruling that found a constitutional right for individuals to carry weapons in public.

In the account provided by the Sagadahoc County sheriff, his office agreed not to make contact with Card after his teenage son and ex-wife reported their concerns on May 3, telling a deputy that Card's anger and paranoia worsened after he got a hearing aid in February.

Instead, a sheriff's deputy spoke with officials at the 3rd Battalion 304 Training Group and connected them with Card's family. The battalion officials "assured our office that they would ensure that Card received medical attention," the sheriff's office said in the statement.

'Time to himself'

When, months later, the Army Reserve unit sought a wellness check on Card, another sheriff's deputy attempted to visit Card at his trailer home in Bowdoin on September 15 and September 16, but there was no answer, the office said. The deputy circulated a missing-person notice among Maine law enforcement offices with Card's physical description and a warning he should be considered armed and dangerous.

After conferring with the Army Reserve unit and Card's brother, the sheriff's office made no further attempts to contact Card: Card's unit commander told the deputy that Card no longer had any weapons from the reserve unit.

His commander advised that they were trying to get treatment for Card and that he thought it best to let Card have time to himself, the sheriff's office said.

Card's brother told the deputy he would work to secure any firearms that Card had access to and that he would call the sheriff's office back if they were worried about him again.

"We believe that our agency acted appropriately and followed procedures for conducting an attempt to locate and wellness check," Sheriff Merry's statement said.

The sheriff's office said it canceled the missing-person alert for Card on October 18.

(Cover: Law enforcement members investigate at a site where the body of the suspect Robert Card is found in Lisbon, Maine, Friday, October 27, 2023. /CFP)