The authorities on Sunday said that a motive for the attack, which left 11 people injured, remained unknown. Citizens, including one who was armed, helped to apprehend the suspect, officials said.
The episodes, which left the shooter dead, started with a traffic stop near an airport and ended at a church in Lexington, Ky., where four people were shot, the authorities said.
An owner of a store in New Bedford, Mass., that sells Pokémon merchandise said a burglar was in and out of the store within half a minute and made a beeline for high-end collectibles.
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