Dan Penticoff, 55, of Hazel Dell, was the third person to purchase marijuana from Main Street Marijuana when it opened on July 9. He says he had to go back to buying it on the black market after prices spiked in late summer. (lt;a quot;
http://www.columbian.com/staff/zachary-kaufman/quot;Zacharyamp;nbsp;Kaufmanlt;/a/Theamp;nbsp;Columbian)
