A car that belonged to Columbine High School killer Dylan Klebold was placed on sale on eBay, an online auction site, but eBay pulled the listing after three days.The popular Web site said the listing was yanked because it was "offensive material" and the listing promoted "murderabilia."The 1982 BMW was found in the parking lot of Columbine High School on the day of the school massacre. Bomb squad technicians found two 20-pound propane tanks and seven pipe bombs in the car.The car was turned back over to Klebold's parents a year later and its ownership after that point was not known.The seller of the car did not respond to e-mails from the Rocky Mountain News seeking comment but posted a comment earlier on eBay that the vehicle was purchased without knowing the previous ownership."Once I found out it was Klebold's I put it up here," the seller wrote. He indicated the car is still in the Denver area.The vehicle identification number of the car listed on eBay matches the VIN of the BMW 320i listed in investigative reports compiled after the school shootings.