A 25-year-old man from Twentynine Palms was identified as the person who bombed a fertility clinic in Palm Springs on Saturday, killing himself, collapsing the roof of the clinic and blowing out windows on nearby buildings.

Officials are “fairly confident” that Guy Edward Bartkus, whose likely remains were found near a burned-out car parked in the clinic’s parking lot, was the bomber, said Akil Davis, assistant director in charge of the FBI field office, at a Sunday morning news conference.

Officials also are investigating a rambling manifesto and recording posted online in which Bartkus describes himself as being anti-life and opposed to in vitro fertilization.

Davis, who described him as having “nihilistic ideations,” – someone who believes life is pointless –  said Bartkus also tried to live stream the bombing.

A search warrant was served at Bartkus’ home on Saturday, and his neighbors were evacuated at that time. On Sunday, officials said no further threat to the community exists.

The bomb exploded around 11 a.m. Saturday in the 1100 block of North Indian Canyon Drive near the American Reproductive Centers fertility clinic, which was closed at the time. The explosion sent debris flying for blocks.

Four people who were injured and have been released from the hospital, officials said Sunday.

Davis declined to describe the type of bomb used or how Bartkus would have built it, deferring to the ongoing investigation.

A host of federal authorities descended on the scene as crews worked to collect evidence in the sizeable blast area.

Palm Springs Mayor Andy Mills described the crime scene as several blocks in all directions and asked anyone who finds anything that could be evidence to call police.

Shortly after the explosion, the FBI posted that it was “responding with police and fire partners to the scene of an explosion on N. Indian Canyon Drive in Palm Springs. FBI assets being deployed include investigators, bomb technicians and an evidence response team. Please contact local authorities for safety precautions in the area.”

Nicole Lozano, spokeswoman for the Bureau of Alcohol, Tobacco, Firearms and Explosives in Los Angeles, said ATF personnel were also on the scene of the explosion, saying, “The Bureau of Alcohol, Tobacco, Firearms, and Explosives Los Angeles Field Division personnel are assisting our state, local, and federal counterparts with the active investigation by providing our unique capabilities and technical expertise.”

An image posted online by a witness showed what appeared to be at least part of a body near the blast scene, which was later covered with a white blanket. Other images showed the remains of a charred car in the parking lot behind the clinic and the clinic’s blown-out front facade strewn along the street.

Witness’ video showed windows shattered at multiple businesses in the area, including a nearby liquor store. Residents reported feeling the shaking from the blast throughout the city.

The clinic is located across from the Desert Regional Medical Center, which did not sustain any serious damage.

According to the American Reproductive Centers’ website, the clinic opened in 2006 and is the Coachella Valley’s “first and only full-service fertility center and IVF (in vitro fertilization) lab.” Its services also include LGBTQ family building, egg donation and freezing, fertility evaluations and embryo transfer.

Mayor Pro Tem Naomi Soto said it was significant that the most heavily damaged building was a fertility clinic, “a place of hope.” She added, “This meaningful work must continue.”

Dr. Maher Abdallah, who runs the clinic, posted a message on social media saying the facility’s office space was damaged but the lab was untouched. He confirmed that no employees of the clinic were injured.

“We are immensely grateful to share that no members of the ARC team were harmed, and our lab — including all eggs, embryos, and reproductive materials — remains fully secure and undamaged,” Abdallah said. “We are heavily conducting a complete safety inspection and have confirmed that our operations and sensitive medical areas were not impacted by the blast.

“Our mission has always been to help build families, and in times like these, we are reminded of just how fragile and precious life is. In the face of this tragedy, we remain committed to creating hope — because we believe that healing begins with community, compassion, and care.

“Out of every tragedy, there is an opportunity to come together with deeper purpose. While today’s events have shaken us all, they also shine a light on the strength of our community, the bravery of our first responders and the resilience of the families we serve,” Abdallah said.

He added that the clinic would be open for business on Monday despite the extensive damage.

Desert Regional Medical Center issued a statement saying, “Hospital staff is cooperating with police as they investigate the cause. Our emergency department remains open and our hospital is fully operational. We are temporarily asking visitors to refrain from coming to the hospital as police have limited access to the road in front of our campus. Some windows were broken in a medical office building directly facing the explosion. Hospital operations have not been affected.”

Gov. Gavin Newsom’s office issued a statement, saying the governor “has been briefed on the explosion.”

“The state, through (the Office of Emergency Services) is coordinating with local and federal authorities to support the response,” according to Newsom’s office.

Palm Springs Mayor Ron DeHarte said he had been in touch with Newsom’s office and other elected officials, including Sen. Alex Padilla.

“My heart is heavy as we grapple with the horrific explosion that occurred … outside the American Reproductive Centers,” DeHarte said in a statement late Saturday. “This act of violence is unforgivable, and I want to be clear: it has no place in our community. The safety and well-being of our residents is our absolute priority.

“We are a strong and resilient community, and we will stand together in the face of this tragedy. We will not let fear define us.”

DeHarte urged people who find potential evidence to not touch it and instead call the police department at 760-323-8116.