Police Chief David Brown

When Micah Johnson opened fire on Dallas police in an act of vengeance against white officers, he was attacking a department whose Chief had been lauded across the country for taking bold steps to root out bad cops and repair relations with minorities.

Dallas Police Chief David Brown on Monday defended the use of a bomb-carrying robot to kill the gunman who went on a shooting rampage last week targeting police and killing five officers.

The gunman who fatally shot five Dallas law enforcement officers appeared delusional, taunted police during extensive negotiations by singing and "laughing at us" and wrote cryptic messages on a wall with his own blood before he was killed by a bomb-equipped robot, Dallas Police Chief David Brown said Sunday.

Dallas Police Chief David Brown says three people are in custody after snipers opened fire on police officers during protests and says a fourth person is exchanging gunfire with officers.

A police officer shot and wounded a man Friday outside a Dallas airport after the man attacked a woman believed to be the mother of his children and then threatened the officer with large rocks, police said.

A man suspected of carrying out a spectacular rampage in Texas was confirmed dead today, after snipers shot him at the end of a stunning attack at Dallas police headquarters.

Snipers shot and presumably killed a suspect in a standoff by the Dallas police headquarters in Texas, officials said today, adding there were no known links to terrorism.

When Micah Johnson opened fire on Dallas police in an act of vengeance against white officers, he was attacking a department whose Chief had been lauded across the country for taking bold steps to root out bad cops and repair relations with minorities.

Dallas Police Chief David Brown on Monday defended the use of a bomb-carrying robot to kill the gunman who went on a shooting rampage last week targeting police and killing five officers.

The gunman who fatally shot five Dallas law enforcement officers appeared delusional, taunted police during extensive negotiations by singing and "laughing at us" and wrote cryptic messages on a wall with his own blood before he was killed by a bomb-equipped robot, Dallas Police Chief David Brown said Sunday.

Dallas Police Chief David Brown says three people are in custody after snipers opened fire on police officers during protests and says a fourth person is exchanging gunfire with officers.

A police officer shot and wounded a man Friday outside a Dallas airport after the man attacked a woman believed to be the mother of his children and then threatened the officer with large rocks, police said.

A man suspected of carrying out a spectacular rampage in Texas was confirmed dead today, after snipers shot him at the end of a stunning attack at Dallas police headquarters.

Snipers shot and presumably killed a suspect in a standoff by the Dallas police headquarters in Texas, officials said today, adding there were no known links to terrorism.