Two men were known to have been wounded and at least 21 suspected illegal immigrants were taken into custody today after a wild shoutout in a southwest Houston neighborhood. Houston police and federal immigration agents were still combing the neighborhood – in and near the Larkwood subdivision – searching for others who fled after the gunfire erupted in the 9000 block of Sandpiper about 9 a.m. The shooting occurred in and near a house that appears to have been used as a "drop house," where smugglers are believed to have held illegal immigrants until relatives could pay their smuggling fees....