The crimes occurred in Phoenix and Chandler.
Burglaries were the biggest driver of the increase.
The Jewelers' Security Alliance is offering a $2,500 reward for information in the case.
The thief targeted an antique retailer in Fort Myers, FL.
Two additional suspects are being sought.
A suspect has been charged with interstate transportation of stolen goods and conspiracy.
The ringleader has been sentenced to 45 months in prison.
He pleaded guilty to narcotics and gun offenses.
He allegedly reached through the back of a display case.
He wants her to 'put politics and ego aside.'
At least 20 people were treated after exposure to the chemical.
The crime occurred in a Whole Foods parking lot.
One of the jewelry pieces was worth $10,000.
National reports of damage are severe and widespread, but incomplete, according to the Jewelers Security Alliance.
In one case, an estimated $100,000 in merchandise was stolen.
The worker suffered 'potentially life-threatening injuries.'
Mark Vuono was killed on March 28.
He was the owner of Marco Jewelers.
He was taken to a local hospital with non-life-threatening injuries.
He was armed with a spray bottle.
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