Report details series of failures to stop Maine shooting gunman who killed 18 in rampage

Deadly New York City shooting rampage l WNT
20/20 ‘Happily Never After’ Preview - Husband killed by mysterious gunman on morning walk with wife
Manhunt underway in Houston for gunman who ambushed, killed on-duty deputy
Sentencing phase begins for the gunman in 2018 Tree of Life synagogue shooting
Alleged 14-year-old gunman will be charged as an adult for Georgia school shooting
FBI received tips about alleged gunman prior to Georgia school shooting
Moment the Secret Service took down gunman in Trump shooting
New report details financial risks of some video games | ABC News Exclusive
New report details financial risks of some video games | ABC News Exclusive
Acting Secret Service chief “ashamed” of security failures at Trump rally

Georgia school shooter’s mother warned school the day of shooting: Report
New details in fatal shooting of UNC professor l GMA
20/20 ‘Happily Never After’ Preview - Husband killed by mysterious gunman on morning walk with wife
Casualties reported in shooting at Georgia high school, suspect in custody | ABC Special Report
New report details financial risks of some video games | ABC News Exclusive
Police give update Jacksonville shooting that killed 3
Deadly stabbing rampage at a busy Sydney mall
New details released on Utah man killed by FBI
Deadly stabbing rampage at a busy Sydney mall
Acting Secret Service chief “ashamed” of security failures at Trump rally