Longtime CBS News correspondent Bob Simon was killed in a horrific car accident in Manhattan Wednesday.

Simon, who once spent 40 days in one of Iraqi dictator Saddam Hussein's infamous prisons, was reportedly not wearing a seatbelt.

The 73-year-old served as a "60 Minutes" correspondent earning 27 Emmy Awards and traveled to over 67 countries in his career that started in the 1960s.

According to the NYPD, the Lincoln Town Car Simon was riding in struck the driver's side of a Mercedes stopped at a red light, then slammed into metal barriers separating the two traffic lanes.

The legendary journalist suffered head and chest injuries and was unresponsive. He was taken to Saint Luke's Roosevelt Hospital, where he was pronounced dead.

Police are investigating whether speed may have played a role in the accident.  

MacCallum and Bernie Goldberg, who previously worked with Simon at CBS, shared their remembrances of Simon this morning.

"It's a tough loss, not only for the people at CBS,  it's a tough loss for anybody who watches television news," Goldberg shared.

MacCallum remarked that Simon "had such a wonderful way of asking questions, of drawing people out."

"He really was, in my opinion Bernie, the best of what we all want to be in terms of how you approach this work," said MacCallum.

"You know in that sense, he was old school," Goldberg said. "He was a throwback to another era. In my view a better era. And Martha in a week when we're talking about a TV journalist who made things up, a TV journalist who yearned to be a celebrity. Let me be very clear about this, Bob Simon only yearned to be a reporter and to cover a news story." 

"As I say, he was a throwback, I mean that in the absolute best sense of that word," said Goldberg.

Watch the video above.