On Front next, breaking news and mystery motive in the deadly Michigan church attack.

Tonight we're learning more about the suspect and his politics as out front speaks to an eyewitness on the scene.

And the man favored to be the mayor of New York City.

Zoran Mamdani is here on the latest twist in the race, Trump calling him a communist, and

whether Obama will endorse him. Plus, the Iranian foreign minister is my guest live? Why are Israelis

getting recruiting calls from Iran's intelligence agency? Let's go out front. And good evening,

I'm Erin Burnett. Outfront tonight, the breaking news, hunt for a motive.

Police tonight chasing down leads in the deadly attack at a church of Jesus Christ of Latter-day Saints

building in Michigan. Investigators trying to understand what led a man to open fire and then

intentionally set fire to a building full of worshipers.

Hundreds of people, in fact, were inside the church at the time of the horrific attack.

And officials are now saying that there were also IEDs, improvised explosive devices found at the scene of the attack.

But we know right now, in a sense, a miracle,

horrific outcome.

People died, but with hundreds inside,

and you look at those flames,

it is incredible in one sense.

Four people are dead.

Eight others injured.

Horrible every one of those.

But miraculous that there were not many more.

The shooter was killed in a shootout with police.

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