A gunman who prompted a SWAT standoff when he shot out of a second story apartment window remains barricaded inside Wednesday morning on the Far South Side. Around 11:20 p.m., officers responded to a call of shots fired in the first block of East 103rd Place and a witness told police they saw the gunman firing, Chicago police said. He retreated into his apartment and a SWAT team responded, police said. The standoff was ongoing as of 10 a.m.No injuries were reported.