The Valspar Corp. claims a former employee took part in a theft scheme worth millions of dollars, but the paint maker and its parent, Sherwin-Williams Co., are demanding in a lawsuit that an insurance company cover the losses. The paint companies filed suit against Beazley Insurance Co. Inc. in Hennepin County Civil Court, saying a claim was wrongfully denied to recover damages from when a former Valspar employee helped steal millions of dollars, according to the complaint. Around 2008, Valspar...