supplied the ICE agents with a tip about two immigrants in a white van.

The intel set into motion an ICE operation to find the van. ICE agents found Salgado - also in a white van - as he prepared to take his brother and two construction workers to a job site. Salgado was not the original target of the operation, according to the documents and Reitz's earlier remarks.

The ICE agents pursued the van, and the report says the driver rammed their vehicles. An ICE agent shot and killed Salgado on the 6800 block of Canal Street.

Wiley's request does not specify which information in the partially redacted document authorities did not want made public. The unredacted information includes the names of the deportation officers who drafted their respective reports and two agents who arrested Tirado. It also contained personal details and a mugshot of Tirado.

The deportation officers described the events leading up to the shooting based on the accounts of the agents who arrested Tirado. Their reports do not identify Salgado by name or describe the moment an agent opened fire.

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The records allege ICE officers turned on their emergency lights and sirens as they pursued a white van before being struck by the fleeing vehicle - which witnesses to the shooting dispute.

Harris County District Attorney Sean Teare contends his prosecutors found no evidence that Salgado  rammed  the ICE agents' vehicles as described in the report.

As the Chronicle sought information about the agents identified in the document, an official with the Department of Homeland Security raised concerns its employees would be at risk of harassment.

Protestors march from Hidalgo Park to the memorial site for Lorenzo Salgado Araujo, who was killed by an ICE agent on July 7. Jacob Lujan/Houston Chronicle

 Publicizing their identities puts their lives and the lives of their families at serious risk,  the DHS spokesperson wrote Friday in a statement.

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Reitz, meanwhile, said his office was reviewing whether  the law or court rules  were broken as part of the document's release. Reitz's office did not immediately respond to a request for comment about the motion to seal.

The federal government has repeatedly declined to identify the agents involved in Salgado's killing or provide key evidence to local investigators.

The U.S. Department of Homeland Security's practice of withholding agent names differs from policies at many local law enforcement agencies, which identify officers after shootings and other incidents involving use of force.

The federal agency also refused to identify an agent - later identified by relatives - who was responsible for shooting a Colombian man in Maine later in July, citing the potential for doxing and online threats.

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 They've made it virtually impossible for anyone to hold them accountable for their impunity and violence,  said Alycia Castillo, associate director of policy for the Texas Civil Rights Project.