1 Week After Mass Shooting

• Video shows arrest of man charged with killing McKeesport police officer

  

• Witnesses recount shooting at Washington, D.C. gym: "Everyone's running around everywhere"

  

• $1,000 reward offered for information in fatal drive-by shooting in Logan Square

  

• Apparent shooting in Ontario Hills Mall causes panic among shoppers

  

• Sacramento State police arrest 18-year-old in dorm shooting

  

• 18-year-old arrested in Deep Ellum Halloween triple homicide

  

• Two young men face charges after duck shooting caught on video in McKinney

  

• Man shot, killed by police in Southwest Philly during traffic stop