President Barack Obama today tried to raise his supporters’ long-standing opposition to jury-directed death-penalties by suggesting to a German reporter today that Americans jurors and judges may be biased against African-American murderers. “What happened in Oklahoma was deeply troubling,” said Obama, referring to a recent execution of an African-American man in Oklahoma. The comments came two years after Obama used a Rose Garden appearance to focus African-Americans’ attention on a dispute over the killing of a young black man — Trayvon Martin — by a neighborhood watch volunteer in Florida. “If I had a son, he’d look like Trayvon,” Obama...