George Zimmerman, the Neighborhood Watch volunteer arrested yesterday in the fatal shooting of 17-year-old Trayvon Martin, faced a judge for the first time this afternoon. Meanwhile, a probable cause affidavit has been filed in the second-degree murder case. In the two-page document, prosecutors offer little new information about the shooting. However, they said in the affidavit that "Zimmerman confronted Martin," an apparent contradiction of Zimmerman's version of the events that led to the shooting. The document says Trayvon's mother identified the screams for help heard in a 911 call as those of her son. It also reveals that investigators interviewed...