A failed Republican state legislative candidate, who authorities say was angry over losing an election last November and made baseless claims that the vote was “rigged”, has been arrested in connection with a series of drive-by shootings targeting the homes of Democratic lawmakers in New Mexico’s largest city.

Albuquerque Police chief Harold Medina held a news conference on Monday evening hours after Swat officers arrested Solomon Pena at his home.

Medina described Pena as the “mastermind” of what appears to be a politically motivated criminal conspiracy behind four shootings at, or near, the homes of two county commissioners and two state legislators. The shooting took place between December and early January.

Pena lost an election in November to incumbent state Representative, Miguel P. Garcia, the longtime Democrat representing House District 14 in New Mexico. Garcia won by 48 percentage points, or roughly 3,600 votes.

Police said Pena had approached county and state lawmakers after his loss, claiming the contest had been rigged against him despite no evidence of widespread voter fraud in New Mexico in 2020 or 2022. The shootings began shortly after those conversations.

New Mexico’s state Canvassing Board unanimously certified the results of the November election.

“This type of radicalism is a threat to our nation and has made its way to our doorstep right here in Albuquerque, New Mexico,” said Mayor Tim Keller. “But I know we are going to push back, and we will not allow this to cross the threshold.”

Deputy Commander Kyle Hartsock said at least five people, including Pena, were involved in the shootings. Pena is accused of paying the others to carry out at least two of the shootings, according to Hartsock, before “Pena himself” allegedly “pulled the trigger” during one of crimes.

Police said they identified Pena as their “key” suspect using a combination of phone records, witness interviews and bullet casings collected at the Democrats’ homes.

A lawyer for Pena who could comment on the allegations wasn’t listed Monday night in jail records.

No one was injured in the shootings, which came amid a rise in threats to members of Congress, school board members, election officials and other government workers around the nation. In Albuquerque, law enforcement has been struggling to address back-to-back years of record homicides and persistent gun violence.

Hartsock said additional arrests and charges were expected in the case but declined to elaborate, citing the ongoing investigation. He said some individuals, including Pena, were in custody Monday night.

A criminal complaint outlining the exact charges against Pena was expected to be released in the coming days.

The shootings began in early December when eight rounds were fired at the home of Bernalillo County Commissioner Adriann Barboa, police said. Days later, former Bernalillo County Commissioner Debbie O’Malley’s home was targeted.

As news reports began to surface about the shootings, state Representative Javier Martinez examined his property and discovered damage from gunshots. Police believe the shooting occurred in early December.

Then, during the first week of January, shots were fired at the home of state Senator Linda Lopez – a lead sponsor of a 2021 bill that reversed New Mexico’s ban on most abortion procedures.

Lopez said in a statement that three of the bullets passed through her 10-year-old daughter’s bedroom.

Police had been investigating two additional shootings – one in the vicinity of New Mexico attorney general Raul Torrez’s former campaign office and another at state Senator Antonio Maestas’ office. But Gilbert Gallegos, a spokesperson for the police department, said Monday the shootings do not appear to be connected to the case.