Australian Senator Fraser Anning is said to have hit the teenager after he egged him.
"But at the end of the day, these types of incidents are the result or the fault of the person behind the gun," Alice Stewart said.
"There is real data and information currently, right now on the rise of white supremacy right here in this United States of America," Representative Rashida Tlaib pointed out.
"You are my friends. I will keep watch while you pray," Andrew Graystone's sign read.
"When Putin interferes in the election, he's impotent," a New York Times opinion writer said. "The question is, why?"
"New Zealand is a sickening tragedy," Coulter tweeted. "When will this insane terrorism end."
American supporters of Donald Trump littered social media with posts condemning accusations tying the president's anti-Muslim, anti-immigrant rhetoric to Friday's shooting at two New Zealand mosques.
As people across the globe mourn, questions have been raised about whether the attack could have been prevented with better intelligence sharing and online surveillance.
"This president has given license to white supremacy in America that has spread across the world," said Tom Steyer, founder of the Need to Impeach campaign.
The alleged shooter called President Donald Trump "a symbol of renewed white identity and common purpose."
Progressive Twitter users lamented the massacre and used it as an example of the consequences of weak laws on gun ownership.
"I was on the ground faking it," Mustafa Boztas said.
"As a New Zealander, I can't imagine a country that is less likely to ignore this and do nothing as the United States has done after Columbine, Sandy Hook and all the others," said gun control expert Philip Alpers, a researcher at the University of Sydney and founding director of GunPolicy.org, which tracks gun laws around the world.
About a half hour after the post, the mass shootings were reported at two mosques in Christchurch, New Zealand.
The conservative political commentator was cited as the person who "radicalized" the alleged gunman the most.
"I feel absolutely sickened having my name uttered by this person," PewDiePie tweeted following the deadly shooting.
Representative Alexandria Ocasio-Cortez said "thoughts and prayers" only "deflected conversation away from policy change."
The guests said the offensive dolls had tarnished their visit to the tourist market.
"Without the jeans I wouldn't be here today," the sailor said.
New Zealand is often mistakenly left off of world maps sold around the globe, a frustration that has continuously plagued Kiwis throughout the years.
The young man fell from the Golden Princess cruise ship somewhere between New Zealand and Australia.