> The subpoena, issued in April, demands the production of records containing IP addresses and other identifying information "for computers and other electronic devices" that accessed the story during a 35-minute time frame starting at 8:03 p.m. on the day of the shooting.
A 35-minute window could still produce a large number of readers, but I assume they had some other information that would have immediately narrowed it down or otherwise confirmed their suspicions.