Self-defense claim in Austin Metcalf slaying is 'uphill battle': expert / D.C. man claims self-defense in killing of unarmed 13-year-old / Who gets to claim self-defense in shootings? Airman's death sparks debate over race and gun rights / Russian defense chief points to West's double standards on right to self-defense / US conducts 'self-defense' strikes against Houthi targets / Can US strikes on Yemen's Houthis be justified as 'self-defence'? / Ex-Ohio sheriff's deputy claims self-defense in fatal shooting of man / Texas Gov. Abbott cites self-defense amid border battle / What qualifies as self defense in Texas? / Man fires at teens in Philadelphia transit station in self-defense during attack: report