Rep. Frederica Wilson delivers speech on the House floor about slain teen.

Sanford Police Chief Bill Lee is temporarily stepping down amid accusations that his department bungled the investigation into the shooting death of Florida teen Trayvon Martin.

Lee's announcement he was stepping aside came shortly before Florida Gov. Rick Scott said another key investigator tied to the case, State Attorney Norman Wolfinger, also had agreed to withdraw. Angela B. Corey of the 4th Judicial Circuit Court was appointed to replace Wolfinger.

Scott added that Lt. Gov. Jennifer Carroll would lead a special new task force to prevent future tragedies like Martin's death that would 'conduct public hearings, take testimony and recommend actions -- legislative and otherwise -- to both protect our citizens and safeguard our rights.'

Lee, in a hastily organized press conference, said he was stepping down because he 'hopes to restore semblance of calm to the city.' He added, 'My hope is that the investigation process will move forth swiftly.'

For more on this story, follw below link:
http://abcnews.go.com/US/trayvon-martin-rally-today-amid-calls-police-chief/story?id=15977847#.T22xFGEgfNU

Trayvon Martin Case: Congresswoman Frederica Wilson Demands Arrest of Suspect on House Floor.