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Blood. i was not able to obtain any dna results from that swab. >> sir, i now want to move to some analysis you did of a sweatshirt or hooded sweatshirt. do you recall doing analysis -- and i'm showing you for the record state's exhibit 118, a photograph. do you recall doing analysis on that exhibit, sir? >> yes, i do. >> okay. with the court's permission, may we turn on the lights to show the actual exhibit? thank you, your honor. may the witness step down, yes or no? >> yes, he may. please step down.

It has a point -- one pointy edge. that edge is used to scrape down in between the fingernail and the skin to try to obtain any kind of foreign dna that might be present under someone's fingernails that might have happened during an encounter or struggle. >> okay. so as to state's exhibit 181, i believe -- i'm sorry, 191. excuse me. you can identify it as coming from the fingernail scrapings from the medical examiner's office of trayvon benjamin martin, is that correct? >> yes. >> your honor, may i publish these to the jury? >> yes, you may. >> and we're going to take a quick break. we'll be r...

Son? >> yes, i did. >> sir, i want to draw your attention to february 27th, that same day. did you later come into contact with the defendant george zimmerman at the retreat at twin lakes? >> yes, sir, i did. >> okay. and were you present when the defendant was interviewed, specifically he was put in the a car with sergeant randy smith and you followed with investigator singleton and then later end up the defendant actually gets out of the vehicle and demonstrates to you or describes what he claims occurred? >> yes, sir. >> okay. have you reviewed that video? >> yes, i have. >> okay. for the r...

>> sir, i want it draw your attention to february 27th. did you later come into contact with the defendant george zimmerman at the retreat of twin lakes? >> jesyes, sir, i did. >> were you present when the defendant was put this a car with sergeant randy smith and you followed with investigator singleton and then later end up at the defendant actually gets out of the vehicle and demonstrates to you or describes what he claims occurred? >> yes, sir. >> have you reviewed that video? >> yes, i have. >> for the record, your honor, it's state's exhibit 181. and before we play it, we do have an inst...