A Virginia man was arrested on Dec. 29 for reportedly destroying evidence during an investigation of his alleged support of the terror group ISIS.
Sean Andrew Duncan, a U.S. citizen, was charged with altering or destroying a thumb drive and memory chip to impede a federal investigation, reports NBC.
One of Duncan's relatives is reported have confirmed that Duncan had previously converted to Islam, and said he may have become radicalized.
Another person who was being held in custody in another country for attempting to join ISIS said Duncan was one of her contacts in the U.S. and had provided information related to homemade bombs.
According to phone records turned over to the FBI in an unrelated investigation, Duncan had searched for Islamic State attacks, weapons, tactics, and the terror group's leader, Abu Bakr al-Baghdadi.
Duncan is currently not facing terrorism charges. According to the FBI, the investigation Duncan allegedly attempted to impede involved attempts to provide material support for a terror organization.
During a Dec. 29 search of his home by agents, Duncan is reported to have run out of the back of the house and thrown out a plastic bag with a broken thumb drive that had been immersed in liquid.
According to the FBI, an undercover employee pretended to be an Islamic State recruit, and Duncan gave her advice about vetting questions.
In a similar story, a California man was arrested for allegedly plotting a terror attack on San Francisco's Fisherman's Wharf.
Everitt Aaron Jameson, 26, was charged on Dec. 29 with attempting to provide material support to a foreign terrorist organization, according to Fox. Jameson had reportedly planned to carry out an ISIS-inspired suicide attack on Christmas Day.
"San Francisco is a city that proudly champions democracy, freedom, and liberty," said the city's acting mayor, London Breed. "Sadly, that makes our home a target. We will not allow the thwarted attempts of one dangerous individual to disrupt our way of life. We will remain vigilant and continue to protect our city from any threat."
Jameson, a former U.S. Marine, denied the charges, and his father said the FBI did not have the right facts regarding the case.
FBI Special Agent Christopher McKinney accused Jameson of posting "radical jihadi beliefs" on social media and liking ISIS-related posts, including a post that included a threat on New York City. Jameson also reportedly expressed support for Sayfullo Saipov, who killed eight people in a terror attack in Manhattan on Halloween.
In December, McKinney said, an undercover FBI agent started to communicate with Jameson, asking him about his support for ISIS.
"I'm glad to know we Muslims are finally hitting back," Jameson told the undercover agent. "The [non-believers] deserve everything and more for the lives they have taken."
McKinney said that on Dec. 16, Jameson met with another undercover FBI agent. Jameson allegedly asked for assistance in getting a fully automatic military assault rifle, and is reported to have suggested an attack on Pier 39, a popular waterfront in San Francisco.
Jameson reportedly told the second undercover agent two days later that he couldn't follow through with his plan, saying: "I ... don't think I can do this after all. I've reconsidered. [God willing], one day I can. But I can't."
On Dec. 20, FBI conducted a search of Jameson's Modesto home, discovering multiple guns, ammunition and fireworks.
Jameson also reportedly "stated his support of ISIS and terrorism" in an interview with FBI agents, adding that "he would be happy if an attack was carried out."
Jameson could face up to 20 years if convicted of his charge.