A Petaluma man was held on $1 million bail Tuesday after police and FBI agents found pipe bombs at his home and materials to make additional explosive devices.
Sheriff's deputies detonated two live bombs and two partially constructed devices outside the Quarry Street home, Petaluma police Lt. Tim Lyons said.
The street through the northeast Petaluma neighborhood remained closed late Tuesday more than 24 hours after the incident began to unfold. Police and FBI officials said there was no current threat to the neighborhood but continued to search the home late Tuesday for evidence.
Ismail Moylan, 30, was arrested on suspicion of possessing a destructive device. He is scheduled to be arraigned in Sonoma County Superior Court on Wednesday morning.
Moylan, who police said also goes by the name Ismail Aljamal, initially was held in Sonoma County Jail on $250,000 bail. His bail was hiked to $1 million after police requested the increase in an attempt to keep him from being released, Lyons said.
Moylan has lived in the subdivision near Corona Road for about 15 years, said neighbors. He manages a family-run religious publishing company from his home called Sidi Muhammad Press, according to the company's website.
FBI agents joined the investigation Tuesday morning after three pipe bombs were found. Later in the day police requested additional FBI help.
"We're calling more FBI out to take a better look at the suspect's history, based upon items found inside the residence," said Lyons. "They're (FBI agents) looking at the whole incident, making sure there's nothing else to this."
FBI bomb technicians, its CSI evidence collection team, a commander and other agents were joining the effort late Tuesday afternoon, said FBI Special Agent Peter Lee, agency spokesman.
"We're sifting through the evidence," Lee said.
The investigation started at about 5:30 p.m. Monday when a family member called 911 to say Moylan was suicidal and could have a gun.
From outside the home, officers used a bullhorn to talk the man into coming outside. He complied and was taken into custody.
Initially Moylan was arrested on suspicion of illegally possessing prescription drugs, a misdemeanor.
Officers then found a handgun at the home and what looked like a pipe bomb. Members of the Sonoma County sheriff's bomb squad were called to the house and determined the pipe bomb, found in the garage, was real.
After obtaining a search warrant for the property, a more thorough effort began before dawn Tuesday and two more devices were found.
Between 4 and 5 a.m. the sheriff's bomb squad detonated the devices using protective equipment.
A fourth, partially built device was found hours later, hidden in a bedroom, Lyons said.
"It appears this one was smaller and while it appeared to be a pipe bomb there was no explosive material inside it," Lyons said.
Of the four devices, two held explosive powder, according to bomb squad deputies. The explosive materials found in the garage included a plastic container of what appeared to be black, explosive powder and materials to make the powder, Lyons said.
Quarry Street, which was shut down Monday night, remained closed all day Tuesday and into the evening.
Police evacuated three families from the neighborhood Monday night after discovering the initial device. Those residents were allowed back in early Tuesday.