An online fundraiser for the family members of a man who opened fire in a Michigan church and set it ablaze has raised over $275,000 as of Thursday in what the organizer described as a “whirlwind of love and forgiveness.”

On Sunday, Thomas “Jake” Sanford, 40, drove his pickup truck into The Church of Jesus Christ of Latter-day Saints chapel in Grand Blanc Township, near Flint, shot at the congregation and set the building on fire.

The attack killed four people, injured eight others and left the church destroyed. Police killed Sanford at the scene.

Dave Butler, a Utah resident and lifelong member of The Church of Jesus Christ of Latter-day Saints, watched news coverage of the attack for hours. The following day, he considered that Sanford's family were also victims of the attack.

“Mrs. Sanford is having like the worst week of her life. And if someone shows up and says, listen, this is not much, 10,000 bucks, help you through for a month or two, right? I think that would be welcome. I did not reckon with the massive generosity and will to love of human beings.” he said.

Butler set up the fundraiser on the platform GiveSendGo on Tuesday morning. He leveraged media connections from his participation in podcasts about the Latter-day Saints faith to help promote the fundraiser.

Donations poured in and the effort quickly drew attention too, highlighting many people being far more familiar with efforts to raise money online for victims of mass shootings in the US.

Authorities have not discussed Sanford's motive for the attack this week, though they have described it as an “act of targeted violence” by Sanford alone. Longtime friends have said he expressed hatred towards the faith known widely as the Mormon church after living in Utah, where he dated but later broke up with a woman who was a member of the faith.

Butler said his original goal was to raise $10,000 to offer the family something to get them through the next few months. He saw an old fundraiser posted years ago online for Sanford’s son, who received groundbreaking treatment as an infant for a medical condition affecting his insulin levels.

Butler said many members of the faith have articulated that contributing to the fund feels like the right way to respond to the tragedy.

“I feel like I’m responding to an attack against us in the right way. Not to get revenge, not to get justice, not to blame the wrong people,” Butler described.

Over 7,000 people contributed to the fundraiser for the Sanford family in the 48 hours since it was posted, raising more money than any of the verified online fundraisers for the church goers who were killed or injured in the attack. Many left messages saying that they are members of the wider church.

An attorney with the Sanford family did not return a message left by the Associated Press Thursday. In a prior written statement release by their attorney, family members said “No words can adequately convey our sorrow for the victims and their families.”

Butler said he is in contact with the Sanford family, and believes the messages left by many donors online were meaningful to them.

“There's just a lot of heart. There's a lot of love. There's a lot of will to tell that family that they're not excluded, right? That they can also be cared for,” Butler said.