Prosecutors released evidence last week that the Sanford Police Department collected on the night of Feb. 26 when George Zimmerman shot Trayvon Martin. This week attorneys from both sides are asking the court to keep evidence private. The evidence released last week included news that four key witnesses made major changes in what they say they saw and heard the night Zimmerman fatally shot Martin. Three witnesses changed their stories in ways that may damage Zimmerman. The fourth witness abandoned her initial story, that she saw one person chasing another and now says she saw a single figure running. It’s unclear how the evidence will affect the case but the [Orlando Sentinel]( has detailed accounts of the witness statements available for further reading. But today, one week after the evidence was released, both sides in the Trayvon Martin murder case want some evidence kept private until trial. [According to the Washington Post](, prosecutors and Zimmerman’s attorneys asked a judge to keep statements Zimmerman gave detectives and the names and addresses of witnesses from being publicly released.