The gun had a switch allowing “a shooter to fire an endless stream of bullets with one pull of the trigger,” prosecutors said.

The Connoisseurs Diamond Dazzle Stik is a breeze to use. Just twist the base until a bit of blue cleaning solution appears on the brush. Dab onto the stone and the setting, then rinse and dry the gem.

For the last few decades, household cleaning aisles in stores have been largely dominated by chemical-laden cleaners, lined ...