In two separate incidents across the country, individuals who allegedly threatened or planned to carry out mass killings of Muslims on U.S. soil had previously vocalized their support for presidential candidate Donald Trump.

A California man who allegedly issued threats to kill members of a Los Angeles-area Islamic center appears to have repeatedly posted pro-Trump and anti-Muslim articles on his personal Twitter accounts. Police say Mark (Milosz) Feigin was arrested October 19 on suspicion of issuing threats over the phone targeting the Islamic Center of Southern California, which is based in Los Angeles. Omar Ricci, spokesperson for the ICSC, said last Tuesday that Feigin “called two days in a row, and also posted hateful messages on our Facebook page (which we immediately took down).”

When police searched Feigin’s home, they “found a cache of weapons and ammunition,” said Ricci.

“As we all know, given the presidential election cycle, the anti-Muslim rhetoric by certain media outlets, and other world events, there are individuals who unfortunately harbor hate and fear towards Islam and Muslims, borne out of ignorance and suspicion,” Ricci added.

Imraan Siddiqi, who has served on CAIR-Arizona's board of directors since 2011, told AlterNet that Feigin has repeatedly published “pro-Trump, anti-Islam” messages on two separate Twitter accounts. One of the accounts includes numerous reposts of articles praising Donald Trump, and also republishes the GOP presidential candidate’s own tweets. While another account that also appears to have belonged to Feigin has been deleted, a screenshot sent to AlterNet shows a photograph of Israeli settlers in the background.

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The Council on American-Islamic Relations-Los Angeles said in a press statement issued last Tuesday, "Threatening tweets from Feigin’s account were directed towards ICSC, but the Counter Terrorism and Special Operations Bureau has not yet confirmed whether Feigin was behind the tweets. CAIR-LA’s executive director, Hussam Ayloush, also received tweets with anti-Muslim comments from Feigin. The tweets were reported to LAPD."

Feigin was released from jail on bond and awaits a November arraignment.

“Even though we are seeing record levels of Islamophobia, including 100 anti-mosque incidents in the last calendar year, along with violent plots like this and the Kansas plot, rarely do we get insight on the social media habits of one of these individuals,” Siddiqi told AlterNet. “As we saw in the Kansas plot and this one, their social media footprint indicates they are influenced by Trump and his hard line stance against Islam and Muslims."

Siddiqi was referring to a Department of Justice report earlier this month that three men were planning to carry out a bomb attack against a Garden City, Kansas apartment building housing Somali immigrants, many of whom are employees at a meatpacking plant. Curtis Wayne Allen, Patrick Eugene Stein and Gavin Wayne Wright were allegedly part of an anti-Muslim militia group called the Crusaders.

According to a criminal complaint against the men, Stein had previously said: “The only fucking way this country’s ever going to get turned around is it will be a bloodbath and it will be a nasty, messy motherfucker. Unless a lot more people in this country wake up and smell the fucking coffee and decide they want this country back … we might be too late, if they do wake up … I think we can get it done. But it ain’t going to be nothing nice about it."

The Southern Poverty Law Center notes:

In July of this year, Stein wrote a lengthy screed filled with anti-Muslim and antigovernment rhetoric. He claimed the Muslim Brotherhood has infiltrated the White House, a common conspiracy theory most notably touted by Frank Gaffney, head of the anti-Muslim think tank Center for Security Policy (CSP). Stein also called Muslims “cockroaches” and claimed, they "are provided more assistance and privileges than our vets are provided.”

On October 2, Stein posted a Facebook appeal for volunteers who “can make themselves available the last week of this month to be a part of a security team at 6 Trump rallies.”

The incidents in Kansas and California come amid an election cycle marred by an uptick in hate crimes. Researchers at CSU San Bernardino concluded in September that over the course of 2015, hate crimes against Muslims increased 78 percent. “These levels are not surpassed since the aftermath of the 9/11 attacks in 2001,” they noted.