Federal investigators are still trying to figure out why shooter Muhammad Youssef Abdulazeez opened fire on two military sites

Federal investigators are still trying to figure out why shooter Muhammad Youssef Abdulazeez opened fire on two military sites in Tennessee last week. A source close to the family tells CBS News Abdulazeez's parents encouraged a seven-month trip to Jordan last year because they hoped visiting relatives would help Abdulazeez recover from what they say was his state of depression. Jericka Duncan reports.

• Apr 6, 2021
• 02:58

Sen. Dianne Feinstein, D-California, calls the recent shootings in Chattanooga by Mohammod Youssuf Abdulazeez a “classic lone wolf terrorist attack”

Sen. Dianne Feinstein, D-California, calls the recent shootings in Chattanooga by Mohammod Youssuf Abdulazeez a “classic lone wolf terrorist attack.” The technological savvy of ISIS and terrorists abroad have made online propaganda a constant battle in the fight against terrorism at home.

• Apr 6, 2021
• 03:33

CBS News senior security analyst Juan Zarate joins “CBS This Morning: Saturday” to discuss what investigators are targeting in the wake of the deadly attack on the military servicemen in Chattanooga

CBS News senior security analyst Juan Zarate joins “CBS This Morning: Saturday” to discuss what investigators are targeting in the wake of the deadly attack on the military servicemen in Chattanooga.

• Apr 6, 2021
• 03:24

In this raw video taken Thursday afternoon in Chattanooga, Tennessee, you can hear bursts of gunfire as police engaged in a shootout with the gunman

In this raw video taken Thursday afternoon in Chattanooga, Tennessee, you can hear bursts of gunfire as police engaged in a shootout with the gunman. CBSN's David Begnaud has the details.

• Apr 6, 2021
• 02:17

Investigators are looking into the past of Mohammad Youssef Abdulazeez, the suspected gunman in Thursday's attack on Marines in Chattanooga, Tennessee

Investigators are looking into the past of Mohammad Youssef Abdulazeez, the suspected gunman in Thursday's attack on Marines in Chattanooga, Tennessee. CBS News correspondent Jeff Pegues reports on what authorities have discovered so far.

• Apr 6, 2021
• 02:31

The military released the names of the Marines killed in Thursday's attack in Chattanooga, Tennessee

The military released the names of the Marines killed in Thursday's attack in Chattanooga, Tennessee. The service members ranged in age from 21 to 40. CBS News correspondent Dean Reynolds reports on the lives lost.

• Apr 6, 2021
• 02:14

In response to the shootings in Chattanooga, Tennessee, law enforcement officials have increased their presence at various military recruitment centers

In response to the shootings in Chattanooga, Tennessee, law enforcement officials have increased their presence at various military recruitment centers. CBS News correspondent Jim Axelrod reports.

• Apr 6, 2021
• 01:16

Officials say Muhammad Youssef Abdulazeez, 24, is the gunman responsible for twin shootings at military facilities in Chattanooga, Tennessee

Officials say Muhammad Youssef Abdulazeez, 24, is the gunman responsible for twin shootings at military facilities in Chattanooga, Tennessee. Abdulazeez was killed, apparently by police. CBS News correspondent Mark Strassmann reports.

• Apr 6, 2021
• 02:49

President Barack Obama delivered remarks on the attacks on two Chattanooga military centers that left four Marines dead

President Barack Obama delivered remarks on the attacks on two Chattanooga military centers that left four Marines dead. CBS News' Scott Pelley covered his remarks.

• Apr 6, 2021
• 04:44

Authorities have identified Muhammad Youssef Abdulazeez as the deceased shooter in separate attacks on two military centers in Chattanooga, Tennessee, that left four Marines dead

Authorities have identified Muhammad Youssef Abdulazeez as the deceased shooter in separate attacks on two military centers in Chattanooga, Tennessee, that left four Marines dead. CBS News national security correspondent Jeff Pegues has the latest.

• Apr 6, 2021
• 07:35

Four Marines were killed after a gunman opened fire at two military centers in Chattanooga, Tennessee

Four Marines were killed after a gunman opened fire at two military centers in Chattanooga, Tennessee. CBS News homeland security correspondent Jeff Pegues spoke with Scott Pelley about the attack.

• Apr 6, 2021
• 04:26

Mayor Andy Berke provided details about two attacks at military recruiting facilities that left four dead in Chattanooga, Tennessee.

Mayor Andy Berke provided details about two attacks at military recruiting facilities that left four dead in Chattanooga, Tennessee. The suspect was also killed.

• Apr 6, 2021
• 03:05

CBSN's Meg Oliver spoke to Caroline Taylor, a woman who works near the scene.

At least two Marines and a police officer were shot at a military recruiting center in Chattanooga, Tennessee Thursday morning. CBSN's Meg Oliver spoke to Caroline Taylor, a woman who works near the scene.

• Apr 6, 2021
• 05:08

Sen. Lamar Alexander, R-Tennessee, makes a case to change the nation's education policy from 2001's No Child Left Behind to one that gives states more freedom

Sen. Lamar Alexander, R-Tennessee, makes a case to change the nation's education policy from 2001's No Child Left Behind to one that gives states more freedom

• Apr 5, 2021
• 05:43

A federal grand jury has indicted a former Tennessee Congressional candidate for soliciting others to burn down a mosque

A federal grand jury has indicted a former Tennessee Congressional candidate for soliciting others to burn down a mosque. CBSN's Jeff Glor discusses the charges.

• Apr 5, 2021
• 00:28

Sen. Bob Corker, R-Tennessee, reflects on the president’s strategy of containment overseas. The Senate Foreign Relations chair says this new round of attacks does not necessarily promise new developments in the effort to shut down ISIS

Sen. Bob Corker, R-Tennessee, reflects on the president’s strategy of containment overseas. The Senate Foreign Relations chair says this new round of attacks does not necessarily promise new developments in the effort to shut down ISIS.

• Apr 5, 2021
• 00:46

Senator Bob Corker, R-Tennessee, warns against the progression of the Iran Nuclear Development Program. The chairman of the Senate Foreign Relations Committee urges negotiators to push for “anywhere, anytime” inspections of Iranian nuclear facilities.

Sen. Bob Corker, R-Tennessee, warns against the progression of the Iran nuclear development program. The chairman of the Senate Foreign Relations Committee urges negotiators to push for “anywhere, anytime” inspections of Iranian nuclear facilities. As the July 7 deadline approaches, Congress will have 30 days to review the U.S.-Iran Nuclear Deal.

• Apr 5, 2021
• 06:49

They were evacuated more than 24 hours ago

After a train car filled with a toxic chemical derailed and caught on fire late Wednesday night, thousands of people in Maryville, Tennessee, are waiting to find out when they can go home. They were evacuated more than 24 hours ago. Omar Villafranca reports.

• Apr 5, 2021
• 02:37

At least 10 first responders were hospitalized due to toxic fumes

A freight train carrying a poisonous chemical derailed in eastern Tennessee, forcing widespread evacuations in the town of Maryville. At least 10 first responders were hospitalized due to toxic fumes. Elaine Quijano reports.

• Apr 5, 2021
• 02:06

There’s one forest in Tennessee where fireflies put on a show unlike anywhere else

There’s one forest in Tennessee where fireflies put on a show unlike anywhere else. It’s no wonder thousands of tourists camp out each year to witness the spectacle of nature's nightlife: a species of synchronous fireflies. Lee Cowan gives us a front row seat. Originally broadcast July 13, 2014.

• Apr 5, 2021
• 06:06

A Delta flight from Philadelphia to Atlanta was forced to land in Knoxville, Tennessee, because of rough weather. The captain decided to order everyone on board some pizza

A Delta flight from Philadelphia to Atlanta was forced to land in Knoxville, Tennessee, because of rough weather. The captain decided to order everyone on board some pizza. CBSN's Meg Oliver and Elaine Quijano have the details.

• Apr 4, 2021
• 00:49

Sen. Bob Corker, R-Tennessee,says the letter sent by 47 Senate Republicans to Iran has added drama to the negotiations and did not get the U.S. any closer to stopping Iran from developing a nuclear bomb

Sen. Bob Corker, R-Tennessee,says the letter sent by 47 Senate Republicans to Iran has added drama to the negotiations and did not get the U.S. any closer to stopping Iran from developing a nuclear bomb.

• Apr 1, 2021
• 05:40

Sen. Bob Corker, R-Tennessee, says he’s concerned that the Obama administration might be giving too many concessions to Iran during the ongoing nuclear negotiations

Sen. Bob Corker, R-Tennessee, says he’s concerned that the Obama administration might be giving too many concessions to Iran during the ongoing nuclear negotiations.

• Apr 1, 2021
• 03:06

Smyrna and Riverdale High School basketball teams are sidelined this morning

Smyrna and Riverdale High School basketball teams are sidelined this morning. Referees caught both squads playing to lose their games over the weekend. Don Dahler reports on the motives of the teams.

• Mar 31, 2021
• 02:59

Severe ice conditions added one more layer of misery for Tennessee, which remains in a state of emergency

Severe ice conditions added one more layer of misery for Tennessee, which remains in a state of emergency. There are 21 confirmed deaths attributed to the weather. Anna Werner reports.

• Mar 31, 2021
• 02:17

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