The FBI was notified after the boy allegedly tagged the White House in a number of tweets
Ashley David Hill had accessed more than 5000 images and films on child pornography.
The ruling said the warrant was not needed as IP addresses are voluntarily given up by users.
Mateen also told authorities that he had explosives in a vehicle outside the club, but none were found.
The partial transcripts of three conversations will be released on Monday, 20 June.
The 'Golden State Killer' committed at least 12 murders, 45 rapes in the 1970s and 1980s.
The 29-year-old husband and father killed at least 50 people and injured 53 others at the Pulse nightclub.
The databases encompass intensely personal information like names, DOB, email addresses, gender and more.
The 1918 stamp was stolen in 1955 when it was on display at a show in Virginia.
Yahoo is the first major company to publicly disclose the content of the secretive FBI data requests.
The FBI proposal for privacy protection exemptions for its biometric database is being strongly opposed by concerned activists.
Symantec security researchers have uncovered links between Swift malware and Lazarus hacker group.
US judge excludes evidence obtained by FBI's hacking tool.
The FBI is arguing that its hacking tool, NIT, is not malware since it was 'authorised by a court'.
The 32-year-old African hacker was at large for three years before finally being caught in France.
National Intelligence Director James Clapper said the problem is likely to grow 'as the campaigns intensify'.
Ex-FBI agent reveals sneaky government surveillance tricks to catch out unsuspecting members of the public.
GCHQ attempts to shake off big brother image by joining social media.
Ameri was found dead at the Bergen Point Golf Course on 13 May.
The best US cybercrime fighters are leaving the public sector to join the private industry.
Isis Agora Lovecruft is a Tor developer that is accusing the FBI of harassment – which the agency denies.
Fight for the Future has launched an online petition designed to 'send a message' to the FBI boss.