SANFORD, Florida (WKMG) -- More evidence was released on Tuesday in the case against George Zimmerman, the neighborhood watchman who shot and killed 17-year-old Trayvon Martin.

The state attorney's office said new records, including video and audio recordings of Zimmerman were released, but they appear to be the same ones released last week.

The evidence also includes written statements from Zimmerman and police, including a police report previously released, but not redacted in some areas as before.

The report contains the results of Zimmerman's voice stress test, along with Zimmerman's account of the events and written statements.

Zimmerman is charged with second-degree murder in the death of Martin, who was shot and killed Feb. 26 in Sanford. Zimmerman has pleaded not guilty, claiming self-defense.

More Trayvon Martin stories:

JAILHOUSE PHONECALLS - George and Shellie Zimmerman

NRA no longer silent on Trayvon Martin, Stand Your Ground law

George Zimmerman arrested, charged with second degree murder

Trayvon Martin songs flood YouTube

"Fake" Trayvon Martin picture circulates on the web

911 calls released

Racial slur uttered during call?

Trayvon Martin's death renews Stand Your Ground debate

Who is George Zimmerman?

George Zimmerman seeks donations on new website

Street sign hacked with hate message

New Black Panther Party touts reward, revenge

Father: Trayvon "saved my life"

Obama: "If I had a son, he'd look like Trayvon"

Geraldo: Hoodie to blame for Trayvon's death

No grand jury for Trayvon Martin case

George Zimmerman's lawyers withdraw from case

Zimmerman back in jail, bond revoked

Sanford police chief fired