(CNN) Hundreds of pages of court documents unsealed Friday in the case of Las Vegas gunman Stephen Paddock offer a blueprint of investigators' pursuits in determining how and why the reclusive high-stakes gambler carried out the deadliest shooting in modern US history.

A federal judge on Friday made public more than a dozen search warrant affidavits that had been filed by the FBI in the days and weeks after the shooting. The judge did so in response to a lawsuit filed by CNN and other media organizations.

The documents describe what investigators believed at the time the affidavits were filed, but do not provide up-to-date information about the investigation. An FBI spokeswoman in Las Vegas declined comment on the documents on Friday evening. The Las Vegas Metropolitan Police Department did not respond to calls seeking comment.

Among the revelations in the affidavits are discussions about mystery email exchanges that occurred two months prior to the attack, which investigators believed may have been related to shooting at the Las Vegas music festival in October, where 58 people were killed and hundreds of others were injured.

"Try an ar before u buy. We have huge selection. Located in the las vegas area," read one message sent to an account investigators believe was controlled by Paddock, the documents state.

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