the noises were heard by a canadian p-3. and that was this morning and some yesterday. reporter: the noise described as banging sounds at regular intervals in the department and homeland security briefing are now described as less specific than that. but still, the focus of the search. we need to have hope, right? i can t tell you what the noises are. what i can tell you, and i think this is the most important point. we re searching where the noises are. reporter: the sounds picked up by buoys like this one dropped from planes. and then listening for any sounds of life from the titan submersible. this team has multiple sensors. they re in the area. they re sending data back expeditiously to the best in the world. reporter: it takes about a day for ships from st. john s, the closest land, to the titanic wreck site to arrive to the search area. it is enormous. two times the size of connecticut. a grid pattern presented by the coast guard indicates the size of the
warrant, law enforcement then collected dna from defendant via buchal swab. a traditional str dna comparison was done between the profile found on the k bar knife sheath and defendant s dna. the comparison showed a statistical match specifically the str profile is at least 5.37 octillion times more likely to be seen if the defendant the source. this motion came about, jake, because the defense asked for everything on dna analysis, which is their right. they want to know the procedure, the statistics, and the prosecution is saying you can have some of it but not anything in regard to the genetic geneology that was done, which is another issue. the fbi helped local authorities to get to this point, right? reporter: with the genetic geneology.