Sanford, Florida -- The first officer on the scene after Trayvon Martin was shot told jurors today how he tried to save the 17-year-old.
Sanford Police Sgt. Anthony Raimondo says Martin was lying face down and had no pulse when he reached the teen, but he still performed CPR and even used a plastic bag to seal the boy's gunshot wound.
Also on Tuesday jurors saw the gun George Zimmerman used to shoot Martin, as well as items the teen was carrying that fatal night like a can of Arizona Tea, a bag of Skittles, headphones and money.
But the day began with the state arguing that prior calls Zimmerman made to police should be admitted because they show the "building frustration" on the part of the neighborhood watch volunteer.
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"We're going back again some calls within two weeks to six months prior to show a building level of frustration that this defendant had with calling about suspicious people, not following them and having them get away," Assistant State Attorney Richard Mantei told the judge.
But the defense claimed the state wants the jury to make a leap from a responsible citizen calling police... to seething behavior on the part of Zimmerman.
Zimmerman's attorney Mark O'Mara went on to say the state wants the calls admitted because it has a weak case that's largely circumstantial with little if any direct evidence to support a charge of second degree murder.
Listen: George Zimmerman Trayvon Martin 911 calls
"They have nothing and now they're trying to present this stealth argument that we want you to believe he's bad because he was so good in the past he must be angry, O'Mara said"
The arguments over the prior calls were made without the jury in the courtroom. The judge says she will review other cases before making a decision.
Trial will resume at 9 a.m. Wednesday morning.
If convicted of second degree murder, Zimmerman could be sentenced to life in prison.