How TMZ’s Harvey Levin cautiously became the key journalist in the disappearance of Savannah Guthrie’s mother

Here are some of the latest headlines on TMZ:

"Paris Hilton’s Hottest Shots Ever!!! Happy 45th BDAY!"

"‘Chicago Fire’ Star Brittany Curran Arrested, Booked on Drunk in Public Charge"

"Eminem Ex-Wife Facing Legal Trouble Over Crashing Car"

Kinda tabloidy, to be sure.

And the entertainment site, founded two decades ago by Harvey Levin, a onetime TV consumer reporter, has had more than its share of controversies. 

Its paparazzi chase and confront celebrities. TMZ...