It wasn't until Yama rewatched the gunman's video of the rampage - which he streamed on Facebook Live - and saw his father lying dead on his back that he realised his father did not escape.
He has so far been charged with one count of murder, although judge Paul Kellar said it's "reasonable to assume" that more charges will follow, after yesterday's deadly shooting.
Cook Islands prime minister Herny Puna said his country's prayers first and foremost were with the victims of the shooting, "their families, friends and loved ones whe are now faced with the irreconcilable loss of their loved ones".
Her fellow countrymen seemed to want to prove her right by volunteering acts of kindness.
Some offered rides to the grocery store or volunteered to walk with their Muslim neighbours if they felt unsafe.
In online forums, people discussed Muslim food restrictions as they prepared to drop off meals for those affected.
"Love always wins over hate".
Ardern said 39 survivors remained hospitalized Saturday, with 11 critically wounded. Our thoughts and prayers are with the victims and their families.
"New Zealand is united in grief", she said.
"We know that there's been young Somalis that have lost their life, people of Turkish backgrounds that have been injured", he told NPR's Weekend Edition from the airport, on his way to Christchurch.
Greg Robertson, chief of surgery at Christchurch Hospital, said medical staff were having trouble dealing with the enormity of the situation. Police say that this person was a member of the public armed with a gun with the intention of assisting officers.
Police then rammed the gunman's vehicle and arrested him. He was not a resident of Christchurch, the prime minister added. "I do believe they did prevent further attacks".
"A category-A firearm holder can purchase the firearms without the magazines or the things that will enable them to be in the state that they were", Bush said.
Australia target CWC win after stunning India
India have been playing non-stop cricket since the fag end of the past year when they toured Australia, New Zealand. Coach Justin Langer said he was "incredibly proud" of a team who also swept the two-match Twenty20 series.
Ardern noted that this individual traveled around the world and spent "sporadic periods of time" in New Zealand. The couple was due to fly out Sunday.
He appeared in court a day after the shootings at the Masjid Al Noor and Linwood Masjid mosques.
"You may have chosen us", Ardern said, addressing the suspect.
At a roadblock outside the Al Noor mosque on Sunday, about 40 people were standing in silence near scores of bunches of flowers.
At least 49 people were killed in Friday's attack.
The second attack took place at the Linwood mosque about 5 kilometers (3 miles) away.
On Monday, government officials plan to hold a cabinet meeting which will "focus on the ease with which legal weapons can be modified to become military-style assault rifles, which are more strictly controlled". He also had more assault weapons in the trunk of his auto, along with what appeared to be explosives.
Tarrant did not have a criminal history and was not on any watchlists in New Zealand or Australia.
Mr Bush, who had earlier called the attack a "very well-planned event", said the suspect was not known to police either in New Zealand or Australia.
Police said three people were in custody.
Watch: PM Ardern's comments on tightening gun laws. In 2015, it had just eight.
'But the Prime Minister has signaled that we are going to look at that issue [banning semi-automatic weapons]'.
The Jordanian citizen of Palestinian origin is reported to have moved to New Zealand five years ago and described it as "the safest place one could ever live in".