MADISON, Wis. -- An online weapons dealer who sold the handgun used in the Virginia Tech massacre and provided equipment in two other mass shootings has quietly closed up shop amid a flurry of complaints from customers who allege he failed to deliver orders after billing them.

Police say Eric Thompson last month abruptly closed his Green Bay, Wis.-based business, TGSCOM Inc., as they probed scores of complaints from customers in nearly every state.

TGSCOM's connections to three mass shootings have drawn national attention in recent years. Seung-Hui Cho used a .22-caliber handgun purchased through TGSCOM when he killed 32 people at Virginia Tech in April 2007. Stephen Kazmierck, who killed five people in a Northern Illinois University classroom in 2008, bought two empty magazines and a holster through a company site.

George Sodini, who killed three women when he opened fire at a Pittsburgh-area health club in 2009, bought an empty magazine and a magazine loading apparatus from the company.

Thompson, who had claimed millions of dollars in revenue, has maintained he's not responsible for how people use guns, but he has had run-ins with federal regulators and now he has dozens of people across the country angry with him.

"It gives everybody who does business online a bad name," said Dennis Johnson, a 60-year-old Web designer in Omaha, Ark. He filed a complaint with the Better Business Bureau this month and has started disparaging TGSCOM on his blog after the company billed him almost $70 for two empty magazine cartridges that never arrived.

Thompson told the Green Bay Press-Gazette he was looking for investors to help him reopen.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Trump picks his VP . . . Documents case tossed . . . Play places for kids . . . Prime Day is coming 

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Trump picks his VP . . . Documents case tossed . . . Play places for kids . . . Prime Day is coming 

Latest videos

YOU'VE BEEN SELECTED

FOR OUR BEST OFFER ONLY 25¢ for 5 months

Unlimited Digital Access.

cancel anytime.