Filmmaker Michael Moore has drawn criticism for a "vile" tweet about the man alleged to have shot dead 10 people at a supermarket in the US city of Boulder on Monday.
Ahmad Al Aliwi Alissa, 21, is facing 10 charges of murder in relation to the mass shooting at a King Soopers supermarket.
While authorities say he has lived the majority of his life in the US, he was born in Syria.
In a satirical tweet, Moore, who directed and starred in Farenheit 9/11, suggested mass shootings had become part of modern day America and Alissa's alleged actions had allowed him to immerse himself in US culture.
“The life of Ahmad Al Aliwi Alissa shows that people can come from all over the world and truly assimilate into our beloved American culture,” he said.
The tweet also featured an image of the Statue of Liberty – a symbol of the American Dream for many migrants.
Moore faced backlash online for the tweet, with many of the thousands of responses saying his remarks were insensitive.
"What a vile creature you have become," political commentator Dave Rubin said.
“So we’re all in agreement this is the worst tweet ever, right?” Daily Caller reporter Andrew Kerr wrote.
"Too soon for this crap," one user declared.
Some defended Moore however, saying the tweet was only hurtful to some due to the truths it was based around.
The shooting, along with another deadly attack in the Atlanta area a week earlier that killed eight people, has reignited debate about gun control across the country.
President Joe Biden said he was "devastated" by the latest shooting and called on Congress not to “wait another minute” to push through legislation to ban assault rifles.
Moore shot to global fame in 2002 for the documentary film Bowling for Columbine, which focuses on the Columbine High School massacre and explores gun control in the US.
He is regarded as an influential left-wing personality who advocates for greater gun control.
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