(CNN)
A group of men who devoted their lives to hunting powerful storms died in the middle of the chase.
Tim Samaras, his son Paul Samaras and Carl Young were killed Friday while following a tornado in El Reno, Oklahoma, relatives told CNN on Sunday. Their work tracking tornadoes was featured on the former Discovery Channel show "Storm Chasers."
This morning fellow storm chaser Tyler Constantini talks about the storm chasing community being stunned by the passing of the scientists.
READ MORE: 'Unpredictable' storm in Oklahoma turned on three chasers
CNN's John Berman reports severe thunderstorms hit Moore, Oklahoma just days after an EF5 tornado caused mass destruction in the area.
CNN's Dr. Sanjay Gupta speaks with Dr. Stephanie Barnhart from the OU Medical Center who says she was just doing her job when the tornado tore through Moore, Oklahoma.
Governor Mary Fallin (R) Oklahoma discusses the response and the recovery effort in Oklahoma.
National Guard was deployed, and searchers continued working overnight
Senator Jim Inhofe of Oklahoma is on 'Starting Point' talking with John Berman about the recent string of tornadoes that have hit his state including the devastating tornado that ripped through Moore, Oklahoma Monday evening. He states, 'All of the tornadoes are just devastating.'
Senator Inhofe urges people to make small donations to the Red Cross or the Salvation Army because there are many residents of these towns in Oklahoma that have lost their homes and all of their possessions.
To find out more about how you can help visit CNN: Impact Your World.
Mayor Glenn Lewis of Moore City is on 'Starting Point' talking with CNN's Brian Todd. Mayor Lewis says his heart goes out to the families. "Right now, we're starting our recovery efforts at City Hall," he says.
READ MORE: Oklahoma tornado spread destruction like a 'two-mile-wide lawnmower blade'
Tornado hit two elementary schools in Moore, Oklahoma. The school in the direct path of the storm was Plaza Towers Elementary School. About 75 students and staff members were hunkered down in Plaza Towers when the tornado struck.
CNN's Pamela Brown: 'Many teachers are being hailed as heroes in their race to rescue children caught in the tornado Monday.'
Pamela Brown is reporting for ‘Starting Point’ from amidst the destruction.
Kevin Rolfs And Jimmy Story Of Basehunters Chasing are on 'Starting Point' talking with John Berman about the footage they captured chasing a massive tornado that ripped through Moore, Oklahoma on Monday evening.
The pair estimate that they got within a 1/4 of a mile of the tornado. For them the experience was absolutely 'surreal.' They describe the tornado as just 'massive', and that the roar from the tornado was 'deafening.' You could feel the ground shake, and feel the 'reverberations off the power of the tornado.'
Lt. Governor of Oklahoma, Todd Lamb is on 'Starting Point' talking with CNN's Chris Cuomo about the recovery effort taking place in Oklahoma in the wake of a fatal tornado.
As the death toll climbs, Lt. Governor Todd Lamb says, "We'll continue to hope that we find life this morning..."
READ MORE: Oklahoma tornado spread destruction like a 'two-mile-wide lawnmower blade'
CNN’s Brian Todd speaks to the Mayor of Moore City about the devastation his community is facing and the search and rescue efforts currently in motion. Mayor Glenn Lewis says he’s hoping they will find more victims alive, having already had “a major loss of life here; 51 people, 20 of them are kids.” Mayor Lewis says his heart goes out to the families who have lost loved ones.
"Right now, we are starting our recovery efforts at City Hall," he says. Mayor Lewis says they have already issued traffic signs for rescue vehicles to navigate the destruction. “We do the traffic signs because when you’re in one of those neighborhoods, you can’t tell where you’re at.”
Todd asks the mayor why the elementary school that was hardest hit did not have a shelter in it. “It’s because of the cost,” Mayor Lewis answers. He says that most of the schools in Oklahoma do not have shelters, but he is sure that this will change. “The school system and city are two separate entities, but I'm sure we'll be talking to them and trying to get FEMA money to help rebuild these schools.”