. ♪ >>> anyone accused of a crime san antonio will most likely pass through the bexar county jail. >>ot to spread out on the wall right here. remove your shoes and socks and put them on the floor behind you. >> some will make bond and leave, but on any given day, about 3500 men and women are housed here, deciding in which of the housing unit to place each inmate is a complex process known as classification. >> every inmate that comes into our facility is interviewed by a classification officer. so our class officers are trained to try to figure out where do we house this person where we will have the least amount of problems. so looking for things like is he mentally ill? does he have any medical issues? >> any problem with seizures? >> no, ma'am. >> suicidal? >> no, ma'am. >> gang related? >> no, ma'am. >> homosexual? >> no, ma'am. of all these factors, critical is determining if a inmate is a gang member. >> if they confirm him as a gang member, the next question is, is he a threat? >> where did you get picked up? what year? >> two years ago. >> the most common way to identify a gan

and this turf war has expanded from the streets to inside the walls of san antonio's bexar county jail>> traditionally the mexican mafia, an outgrowth of a prison gang, had been a controlling gang here in san antonio, but here lately because members of the mexican mafia are getting older and some younger groups have come in and it's creating a lot of problems for us here at the bexar county jail. >> with the capacity for 4,500 men and women, bexar county jail is largerer than many state prisons. most of the inmates here are pretrial detainees, meaning they have only been charged with crimes and are awaiting the resolution of their cases. but that doesn't stop violence. >> code 2! >> code 2. an inmate has just assaulted an officer. a jail special emergency response team, or s.e.r.t., answers the call. >> put your head to the wall. >> what's your name? >> juan rubio. >> 773699. >> injuries. >> right there to the nose. >> redness -- >> redness around the ear. it's all good. >> i don't have a statement. >> the report will read that juan rubio, currently in jail on charges including aggrava

publish or not. >> let's talk about work that you may have done, specifically for entities outside the bexar county medical examiner. with reference to your expertise in firearms injuries, particular, have you done work for the united states government? >> yes, about, i think about two years ago, i testified for the u.s. attorney's office and some incidents in new orleans, during the hurricane katrina, where police officers shot and wounded a number of people and killed one person. and i testified for the u.s. department of justice in that case. and i have done like one or two other cases and such. >> have you done any work for the united states marines? >> war crimes, i testified for marine corps in the prosecution of an individual charged with war crimes. >> how about for the british government? >> pardon? >> for the british government? >> the bloody sunday massacre, that happened in belfast years and years ago. and the -- and i have another case going in about another two months in britain, having to do with actually concussion head injury. >> as well the united nations? >> yes. yugoslavi

the bexar county jail is a modern day fortress that houses approximately 3500 male and female inmates. most have only been charged with crimes and are awaiting trial for the resolution of their cases. we're very regulated on how we treat inmates. we realize that even though they're incarcerated, they still have rights. we also realize that we're not here to punish or to convict anyone, just to hold them. >> but in jail, holding inmates is never a simple proposition, especially when they don't want to be held. >> a lot of the gang members, because they're secured in the cell for 23 hours a day, they've got all that time to, you know, think of different games they can play with the officers. because they're trying to create a reputation for themselves that they're not to be messed with. >> i'm easy to get along with, once somebody disrespect me or something, we're going to take care of business. >> jose hidalgo is described as a member of what officials describe as the fastest growing and most notorious gang in the jail, the tango orejones. but hidalgo describes the gang as more of a fe

perales' pen pal relationships with two inmates from rival gangs have already caught the attention of the bexarail's gang intelligence division. >> you got a guy that you have a child with but you're writing to somebody else as well? correct? >> one of the letters written to perales was intercepted by mail room staff, who suspected it might contain gang codes. now, she has some new trouble. >> perales? >> yes, sir? >> since the last time we spoke to her, we did a background check in the facility and her last incarnation, involved in a report she was an aggressor, and accusing the inmate of being an informant in reference to some narcotics that might have been in the unit. >> given this new information, officer rodriguez has read all of perales' mail to look for more gang ties. >> so by- peggy, i was able to get the letters out of your property. i did read them. i did find that you had nothing that was considered gang-related in there. can i give these back to you? i'm going to put them in your property. when you leave the facility you can get them from your property. do you have any questions s

. >> george saidler is deputy chief of criminal investigations for the bexar county, texas, sheriff'sice. in april 2002, months before lieutenant jaramillo ever heard of dale tacheny, the former monk called detective saidler. tacheny gave him details about how father feit had admitted murdering a 25-year-old woman. >> i remember mr. tacheny telling me the girl had been placed in a bathroom, wrapped in what i call a saran wrap or cellophane, that she was naked from the waist up, that he had fondled her breasts. >> tacheny gave detective saidler numerous details about the murder that had never been made public and even put them in writing. >> i was convinced that mr. tacheny knew about the murder and that this person had told him about it. >> rudy jaramillo could not have possibly fed information about the murder to the former monk, says the chief. >> i knew dale tacheny months before ranger jaramillo ever knew about dale tacheny and the details of the case. i certainly found him credible enough that i was convinced that he knew about a murder. >> but guerra says he doesn't believe said

. >> george saidler is deputy chief of criminal investigations for the bexar county, texas, sheriff's office. in april 2002, months before lieutenant jaramillo ever heard of dale tacheny, the former monk called detective saidler. tacheny gave him details about how father feit admitted murdering a 25-year-old woman. >> i remember mr. tacheny telling me that the girl had been placed in a bathroom, wrapped in what i call a saran wrap or cellophane, that she was naked from the waist up, that he had fondled her breasts. >> tacheny gave detective saidler numerous details about the murder that had never been made public and even put them in writing. >> i was convinced that mr. tacheny knew about the murder and that this person had told him about it. >> rudy jaramillo could not have possibly fed information about the murder to the former monk, says the chief. >> i knew dale tacheny months before ranger jaramillo ever knew about dale tacheny and the details of the case. i certainly found him credible enough that i was convinced that he knew about a murder. >> but guerra says he doesn't believe

outside bexar county, i could testify for the defense for prosecution. i did -- you don't do many private criminal cases, such as like what i'm doing now. i'd run about, you know, two to four a year at the most. >> you have been working as a consultant since the beginning of 2007 then, if i've done the math correctly. i'm sorry. exclusively as a -- >> right, since january of 2007. >> in other words, you've been in private practice as a consultant since january of 2007? >> yes. >> and the majority of your work is in connection with civil cases? >> yes, sir. >> does that sometimes still include gunshot injuries, though? >> yes. usually, it's cases, insurance cases involving alleged suicides, whether it's a suicide or not. on occasion, you'll get a case of accidental discharge to maybe a defect in the firearm. >> you mentioned that you were in the military. did you do any research when you were in the military? >> yes, sir. that is when i started my firearms research. we studied the mechanisms of firearms and review gunshot wound cases. we had with micro fl

the end of february in 1981. in 1981, i became chief medical examiner of bexar, county, texas. ief medical examiner there. the major city is san antonio which i'll give a plug. it's the seventh largest city in the united states. a beautiful place to live. so i was chief medical examiner there from march 1st, 1981, until i retired december 31st, 2006. for 16 of the years i was there, i was also in charge of the crime laboratory. i then retired and i went into complete private practice of forensic pathologist, which i have been doing since then. i'm also the editor of the american journal of forensic medicine and pathology, which is an international journal of forensic medicine. and i'm chairman of the texas forensic science commission, which is a state agency charged with -- i guess you could say, monitoring the practices of crime labs in the state of texas. >> dr. di maio, you mentioned you were the director of the bexar county crime all about for 16 years. can you expand to that a little bit? what was your role more specifically and what did the lab do? >> i established it. the

it's vincent di maio, the former medical examiner of bexar county texas. has testified in almost every top trial in the country. i have seen him on the stand too many times usually for the defense. he is no joke. this guy is smoke. knows how to testify, does very well. he knows his science. he was testifying about how long a person can stay alive and talk and move after being shot in the heart. he gave some amazing testimony in the cross examination was -- have a look. >> even if i right now reached across, put my hand through your chest, grabbed your heart and ripped it out you could stand there and talk to me for ten to 15 seconds or walk over to me because the thing that is controlling your movement and ability to speak is the brain. and that has a reserve supply of ten to 15 seconds. that is minimum. that assumes no blood is going to the brain. >> now, did i understand you correctly that if you came over here and you pulled my heart out that i could sit there and walk and talk for how long? >> ten to 15 seconds. >> so if you pulled my heart out now i c

the time that you've worked as a forensic pathologist. >> right, over 40 years. >> you mentioned that you had worked in bexar county, as the medical examinerom 1981 until the end of 2006. during that time, did you routinely perform autopsies? >> yes, i performed about 9,000 autopsies and then i reviewed the autopsies that were done under my jurisdiction, and that was about at 27,000, 28,000. read the autopsies and said whether i agreed or not. and the 9,000, i did autopsies until act of the year that i retired. >> would you typically, if involved in a criminal case, involving work that you hade

the uncle -- >> reporter: yes. they're going to have a forensic pathologist which is what dr. bao was and this is vincent dimaio out of san antonio, he's a former bexarounty medical examiner and he relied on the book written by vincent dimaio discerning the gunshot wounds to trayvon martin and now the defense will call him as their witness. >> jean casarez, appreciate it from sanford, florida. >>> in the middle east, the chaos continues as supporters and detractors of president morsi clash on the streets. >>> and the duchess of cambridge is due any day now. we'll go to london to see the crazy souvenirs they are selling for this royal birth. >>> egypt has been a close ally of the u.s. and it's one of only two erabb countries that has a peace deal with israel, but as cnn reports things are tenuous as israel remains silent on the upheaval. >> with the removal of egypt president mohammed morsi by the military, world leaders ranging from u.s. president barack obama to saudi arabia's king abdullah have all weighed in on the developments but one regional power has remained silent from the sidelines, israel. so far there's been no official statement from tel