It ' s been a year since a series of bombings paralyzed the capital of Texas for nearly three weeks two people bombings Conflict.Attack.DetonateExplode killed and five others injured in Austin the victims seem to be killed Life.Die.Unspecified at random . injured Life.Injure.Unspecified police closed and the bomber blew himself up . And while we ' re now learning more blew Life.Die.Unspecified the bombings we still don ' t know the motive ABC ' s Brett milky has more . Yes that ' s right you know if you look back a year ago the first bomb actually went off on March 2 but we did not know this was went off Conflict.Attack.DetonateExplode bomber . Until exactly one year ago now in an ABC Nightline special that airs tonight we are seeing through the eyes of police officers as this all played out and in public statements police are always putting out that calm professional vibe right will . ABC ' s Josh mar goal until seemed we ' re just learning . How scared east cops war . Law enforcement is terrified by what they ' re watching and they ' re watching an escalation they were very very clear that they didn ' t know was happening he was clearly getting more sophisticated . And more effective in his bombs keep packages them like they were ready to go into the mail or into the shipping system . Which terrified law enforcement the most dangerous kind of a bomb . Is one that is put into this shipping or package delivery system because . That ' s the place you ' re putting a bomb on a plane as a V didn ' t want to admitted at the time because he ' d want to cause a panic but they saw packages ready for shipping day had a hunch and the fear that his next step would be to put it into the shipping system at the end it was exactly that it . He ' s gonna tell me just how close the suspect was to getting away in remember Austin sits on an interstate highway Hulk it ' s perfect for getaways . Meaning this really was a race against time . We ' ll have a lot more on this behind the scenes thriller on start here later this morning listen on apple podcasts . We feared podcasting and a generic Kenneth . At a public soon be really good deafening to an end to start here this morning .

Afghanistan : Roadside IED blast Conflict.Attack.DetonateExplode kills Life.Die.Unspecified multiple civilians in Ghazni province August 23

Attack Conflict.Attack.DetonateExplode on a military base and police training centre comes a day after an assault Conflict.Attack.DetonateExplode in Logar province that killed Life.Die.Unspecified eight .

Three American Service Members Killed Life.Die.Unspecified in Afghanistan IED Roadside Bomb Explosion Conflict.Attack.DetonateExplode

On December 21 , 2015 in Bagram , a suicide bomber blew Conflict.Attack.DetonateExplode himself up , killing Life.Die.Unspecified six NATO service members .

The Cafetería Rolando bombing was an attack Conflict.Attack.DetonateExplode on 13 September 1974 at the Rolando cafe in Calle del Correo , Madrid , Spain which killed Life.Die.Unspecified 13 people and wounded Life.Injure.Unspecified 71 . Though no claim of responsibility was made , the attack is widely believed to have been carried out Conflict.Attack.DetonateExplode by the armed Basque separatist group ETA .

The Oklahoma City bombing nearly 22 years ago was an act of domestic terror bombing Conflict.Attack.DetonateExplode U . S . military veteran Timothy McVeigh and his accomplice , Terry Nichols . The bombing destroyed one third of the Alfred P . Murrah Federal Building in downtown Oklahoma City , Oklahoma , killing 168 people and injuring 680 others . In his documentary killing Life.Die.Unspecified Oklahoma City , injuring Life.Injure.Unspecified Barak Goodman revisits the bombing as the first major domestic terrorist attack in the United States on April 19 , 1995 .

Moments before a federal judge sentenced him to death , Boston Marathon bomber sentenced Justice.Sentence.Unspecified Tsarnaev rose death Life.Die.Unspecified his feet Wednesday and apologized to the victims and their loved ones for the first time .

Convicted Boston Marathon bomber Dzhokhar Convicted Justice.Convict.Unspecified has been sentenced to death over the sentenced Justice.Sentence.Unspecified 2013 attack that killed three people attack Conflict.Attack.Unspecified wounded killed Life.Die.Unspecified others .

1974 : Birmingham pub blasts kill Life.Die.Unspecified 19

A child ' s terror as the ruthless IRA bombers strike , crystalises the anguish of the day of murder Youngest of the nine who died in the IRA holocaust - 14 year old Glynn Stephen Parker , of Belfast . Timetable of terror Between 2 . 10 and 3 . 15 on the afternoon of July 21 a total of 19 bombs exploded in various parts of Belfast . Nine people died in the explosions - seven civilians and two soldiers . The injured were - 77 women and girls and 53 men and boys . It was at first thought that 11 had died . This is the timetable of terror on this day of murderous , ruthless bombing of the civilian population : - 2 . 10 - Smithfield bus station . Explosion in strike Conflict.Attack.DetonateExplode car left in an enclosed yard . Extensive damage to houses in nearby Samuel died Life.Die.Unspecified . Many houses damaged . 2 . 16 - Brookvale Hotel , Brookvale Ave . , Antrim Road . Three men armed with a sub - machine gun planted a bomb in the building in a suitcase exploded Conflict.Attack.DetonateExplode hotel was wrecked and adjoining houses were damaged died Life.Die.Unspecified 2 . 23 - LMS Railway Station , York Road . injured Life.Injure.Unspecified in a suitcase left on the platform . Extensive damage to the station interior and the roof was blown off died Life.Die.Unspecified 2 . 45 - Star Taxis , Crumlin Road . The explosion was in bombing Conflict.Attack.DetonateExplode car beside the houses of the warders from the nearby Crumlin Road prison . Explosion Conflict.Attack.Unspecified blast wrecked the taxi offices and caused damages to the damage ArtifactExistence.DamageDestroyDisableDismantle.Damage . 2 . 48 - Oxford Street bus station damaged ArtifactExistence.DamageDestroyDisableDismantle.Damage Explosion in a car which had been driven into the rear of the station . Extensive damage to the office block and superficial damage to adjoining property . Six people killed and nearly 40 injured .

A wave of attacks Conflict.Attack.Unspecified across Iraq on Monday killed Life.Die.Unspecified 107 people in the country ' s deadliest day in more than two years after al - Qaida warned it would mount new attacks and sought to retake territory .

Three bombings occurred Conflict.Attack.DetonateExplode in Kabul , Afghanistan , on 25 July 2019 , killing Life.Die.Unspecified at least 15 people .

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How Many US Troops Were Killed Life.Die.Unspecified By Iranian IEDs in Iraq ?

The 2019 Quetta bombing Conflict.Attack.DetonateExplode was a suicide bomb attack on an open marketplace in Quetta , Pakistan on 12 April , killing Life.Die.Unspecified 21 people .

Twenty - one people have been killed and dozens more injured in a car bombing at a Colombian police academy in Bogotá , recalling the high - profile attacks associated with the bloodiest chapters of the country ’ s guerrilla and killed Life.Die.Unspecified conflicts .