General John Allen: Soldier acted alone

FBI: Shooter acted alone in lawmaker attack

Shahbaz Sharif alone will suffer if NAB acted in Punjab, says Masood

Shahbaz Sharif alone will suffer if NAB acted in Punjab, says Masood

Kennedy assassination: ex-Secret Service member says shooter may not have acted alone

French cops seek to establish whether Louvre attacker acted alone

Ombud finds soldiers acted improperly

Canadian police say Ottawa gunman acted alone

Saudi attacker 'acted alone' in Florida naval base rampage

Met Police chief believes London Bridge attacker acted alone

Vienna gunman acted alone, says minister

Gunman at Navy Yard acted alone, had valid pass

PERSPECTIVES | IDF: soldier acted 'professionally' | Tuesday, December 19th 2017

Vienna attacker acted alone and had tried to join so-called Islamic State, say authorities

Canadian parliament shooter likely acted alone RCMP

Canadian police say slay suspect acted alone

LA Police: airport shooter acted alone and is in custody

FBI say suspect in Washington shooting acted alone

U.S. shooter 'acted alone'

France Bastille Day truck attack: authorities investigate if Mohamed Bouhlel acted alone - TomoNews

London attack: Police say terrorist Khalid Masood acted alone