Houston (AFP) – Keith Jehlen says the shooting at a Texas elementary school makes him “sick,” but that “you can’t blame the gun” used to murder 19 small children and two teachers. “We’ve always had guns in this country,” says the 68-year-old retired US Postal Service worker, noting that he personally owns more than 50 firearms. Jehlen is standing in line to see former president Donald Trump speak at a National Rifle Association convention that is controversial being held just hours from Uvalde, the town where the school massacre took place earlier in the week. Reflecting on the shooting, he gr…