Police say the suspect had a ghost gun, possibly made with a 3D printer, when he was arrested on Monday. Here’s what to know about the increasingly widespread weapons and efforts to regulate them.
shooting
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The Secret Service admits failures in Butler, Pa., Trump shooting
The acting director of the Secret Service also cited “complacency” from others, as well as over-reliance on mobile devices and flaws in advance planning.
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Gun shots fired near Trump at his Florida golf course, former president is ‘safe’
The Secret Service and the Trump campaign say the former president is ‘safe’ following a shooting nearby in Florida.
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Trump gunman’s hometown of Bethel Park reels after assassination attempt
The working-class town of about 30,000 just outside of Pittsburgh was rattled after learning the gunman came from their community, but most are hoping to put the violent episode behind them.
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1 dead, at least 21 injured in shooting at Kansas City Chiefs’ Super Bowl rally
A local Tejano music DJ, who is a mother of two, was killed in the shooting following the Chiefs’ Super Bowl victory rally in Kansas City, Mo. Three people were taken into custody, authorities said.

