Four people were killed in a mass shooting at a Midtown Manhattan office tower on July 28, according to the supplied CNN report. The account says no motive had been announced when the live coverage was published and that investigators had found a suicide note expressing grievances with the NFL and saying the gunman suffered from CTE. That combination left the case both violent and unresolved: a deadly attack had ended, but the explanation had not.

The report’s central facts are stark. Four people died. The shooting happened in a dense commercial part of Manhattan. Authorities had not yet settled on a public motive. CNN’s live update format means the situation was still being assembled in real time, but the publication had enough information to confirm the death toll and the existence of a note. That note gives investigators an important clue, even if it does not yet amount to a full motive statement.

Because the excerpt is brief, the safest account is to stick to what is explicitly reported. The note expressed grievances with the NFL and referenced CTE, a condition associated with repeated head trauma. That does not by itself explain the attack, and the source does not say investigators had drawn any conclusion from it. The report therefore sits in a familiar breaking-news space: enough evidence to state what happened, not enough to declare why it happened.

The office-tower setting also matters. A shooting in a Midtown tower immediately raises questions about workplace security, building access and how quickly police can isolate a dense urban scene. The supplied report does not go into those details, but the location alone makes the event more than a criminal episode. It is also a public-safety problem in the center of one of the country’s busiest business districts.

For now, the verified story is limited but serious. Four people were killed. The suspect was dead by the time of the live report. Investigators had found a note and had not announced a motive. That leaves the case in the category of tragedies that are immediately clear in consequence but not yet in cause, with the next phase of the story depending on whether police can turn fragments of grievance into a coherent account of why the shooting happened.

The office-tower setting also means investigators will have to explain how a gunman was able to turn a crowded Midtown building into a mass-casualty scene. The source does not yet provide those operational details, which is why the public record remains centered on the death toll and the note. In a case like this, the early headlines can tell you the scale of the loss before they can tell you the full sequence.

The note itself may become important evidence, but it is not the same thing as a confirmed motive. A grievance with the NFL and a reference to CTE suggest possible personal frustration, not a complete explanation for the shooting. That distinction is crucial because it keeps the report honest: police have found a clue, but they have not yet publicly translated it into a legal or psychological finding.