The FBI stopped a man from John F Kennedy in New York on Tuesday evening in connection with the automotive bombing last month outside a fertility clinic in Palm Springs, California.
The authorities said that Daniel Park, 32, of Kent, Washington, had sent 180 pounds of ammonium nitrate – an ingredient used in homemade bombs – to Guy Edward Bartkus.
On Wednesday, Mr. Park appeared briefly before the New York court to provide significant support to the terrorists and will be sent to California.
The authorities say that Bartkus exploded an explosion on May 17 outside the fertility clinic of American reproduction centers. Four people were injured and Bartkus, 25, was killed in the explosion.
Bartkus left writings that suggest that he disapproved of people brought into the world against their will and plead for the end of childbirth and the possible extinction of humans.
The FBI called The Blast as an “intentional act of terrorism” and said that the fertility clinic had been deliberately targeted.
Bartkus was a resident of Twentynine Palms, a small town about 150 miles (240 km) east of Los Angeles.
The authorities said Bartkus had instructed his Silver Ford 2010 sedan with explosives before driving an hour of Twentynine Palms to Palm Springs.
The explosion felt more than a mile.
At a press conference on Wednesday, American lawyer Bill Essayli said that Mr. Park and Bartkus had spent time together conducting experiences in the Bartkus garage.
Several days after the explosion, Mr. Park went to Denmark and then to Poland, but was detained by the Polish authorities and returned to the United States, where he was arrested.
He appeared on Wednesday in front of the New York Federal Court for a brief audience, carrying a t-shirt that had the words “fight like the Ukrainians” printed and had a large white bandage on his right hand, according to the American partner of the BBC, CBS News.
He agitated his rights to a detention hearing, acknowledged that he knew the charges held against him and was taken to the metropolitan detention center in Brooklyn.
Akil Davis, deputy director in charge of the Los Angeles field office of the FBI, said that Mr. Park “was in possession of an explosive recipe which was similar to the Oklahoma City attack”.
Investigators say that the pair discussed online plans and was part of a movement called anti-natalism, which is also known as pro-moralism or enfilism.
Movement has many branches and ramifications, but largely maintains that as there is a large amount of suffering, it would be preferable for humans and other life forms to go out.
Mr. Davis described the site of the Fertility Clinic as “the biggest bombing scene” that the FBI had seen in South California in recent memory.
Several buildings have been damaged in the explosion, including the fertility clinic with images showing part of its destroyed wall.
According to its website, the Arc clinic is the first fertility center at full service and Lab IVF in the Coachella valley.
It offers services, including assessments of fertility, IVF, egg donation and freezing, reproductive support for same -sex couples and substitution maternity.
