Australian Brenton Tarrant is a 28-year-old body builder and personal trainer from the small town of Grafton in northern New South Wales.
Alsati reportedly moved to New Zealand from Jordan in 2014.
Leaders around the world expressed sorrow and disgust at the attacks, with some deploring the demonisation of Muslims. "We as a health system are here to support everyone in our community". He also apparently smirked at photographers, according to the New Zealand Herald. "These acts of hate have no place in the diverse and tolerant society for which New Zealand is justly known", the White House statement said.
He said the Fijian people stood with their Pacific family in this time of suffering and sadness, and we condemn all forms of hatred and terror.
A few hundred demonstrators have protested the New Zealand mosque shootings outside Istanbul's Hagia Sophia - a Byzantine-era cathedral that was turned into a mosque and now serves as a museum.
People have also been laying flowers outside of mosques in other parts of New Zealand in solidarity with the victims and their famlies. Dozens more were taken to hospital, with about 48 discharged since the shootings.
In contrast, President Donald Trump has repeatedly told mourning Americans in the wake of shootings that stricter gun control would make the country more unsafe, not less.
He also praised the two officers who arrested Tarrant.
We send our thoughts and prayers to everyone in New Zealand today. "We will do whatever we can to help them heal and rise above this bad tragedy".
Camera Icon United in grief New Zealand Prime Minister Jacinda Ardern with Muslim community
"My message was, "Sympathy and love for all Muslim communities". "They have prevented further deaths and risked their own lives to do so".
'Yes sister! Yes! Let's end this senseless violence, ' she tweeted.
Ardern said she had asked authorities to look into whether there was any activity on social media or elsewhere ahead of the attack that should have triggered a response.
"The United States strongly condemns the attack in Christchurch". "I got a call last night from a friend, around midnight, to say he has passed away".
The Pacific Music Awards organisation in New Zealand also expressed its shock and solidarity over the shootings.
He acknowledged the frustration being felt by family members of the victims, who were desperate to bury their loved ones.
Meanwhile, the final day of the Auckland secondary schools dance festival Polyfest was cancelled following the attacks.
"We appear to primarily be dealing with one primary perpetrator, but we want to make sure that we don't take anything for granted in ensuring New Zealanders' safety", Prime Minister Ardern said.
"The magnitude of this is the thing that is the most significant issue for people".
Aupito said festival organisers have contacted schools about the decision.