Happening now, manhunt over how an online post helped track down the suspect behind the deadly shootings of Brown and MIT.

We are live with new details.

Plus, DOJ deadline. The clock is ticking for the Justice Department to release all of the unclassified documents related to Jeffrey Epstein.

And a CNN exclusive, what we are learning about a plan to overhaul the vaccine schedule

for kids in the U.S.

Welcome to our viewers in the United States and around the world.

I'm Pamela Brown.

Wolf Blitzer is off and you're in the Situation Room. room. Happening now, authorities in New England shift from manhunt to motive as a suspected

killer is found dead from a self-inflicted gunshot.

Officials say he is 100% their target, not just in Saturday's mass shooting at Brown University,

but a Monday's killing of an MIT professor.

The accused killer 48-year-old Claudio Nevis Valenti, Valente, died of an apparent suicide inside a storage unit in New Hampshire.

Police had little more than surveillance video like this to go on, and they say the big break came from this man.

They had been trying to track him down because he had a chance encounter with the suspect at Brown before the attack that killed two students and wounded nine others.

That person came forward to two Providence police officers over on the east side and said he had information that he was that person and he had information that could help this case.

And I remember last night watching his interview and he blew this case right open.

And that person led us to the car, which led us to the name,

which led us to the photographs of that individual,

renting the car, which matched the clothing of our shooter here in Providence,

that matched the satchel that we see here in Providence. He was found dead with a satchel with two

firearms and evidence in the car that that matches exactly what we see at the scene here in Providence.

See it as Michael Yoshida is right outside that storage unit where the manhunt ended last

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