DELPHI, Ind. – One of the most famous—or infamous—pieces of the Delphi murders puzzle is video taken from Libby German’s phone. The grainy image of “Bridge Guy” was taken from a video extracted from Libby’s phone. During Tuesday's testimony, Brian Bunner, a digital forensic expert with Indiana State Police, discussed his efforts to retrieve data from it. Delphi murders: Contentious cross examination of investigator marks Day 4 of testimony Bunner said he extracted video four separate times between 2017 and 2019. In 2017, the phone was sent to the Department of Homeland Security for additional analysis. Jurors watched as 43 seconds of video captured from Libby's phone was played in the courtroom on Tuesday. The video captured flashes of Abby and Libby along with a man, the "Bridge Guy," walking in the distance. Grainy image released in February 2017 of the Delphi killer The man's voice is heard commanding the girls, uttering the infamous line "Guys, down the hill." Abby, wearing a red shirt, rushes past the phone's camera, which is pointed toward the ground and shows railroad tracks and a gravel path. One of the girls, believed to be Libby, is heard responding to the man, telling him something to the effect of “There's no path down here. We've got to go down here.” They then descend toward the southside bank of Deer Creek. The girls bodies would be found across the creek the very next day, some of their clothes wet. This was the first time a longer version of the cell phone video had been played in public. The portion showed before court took a break didn't include "down the hill" audio previously released in the early days of the investigation. Delphi murders: Day 3 of testimony includes graphic crime scene photos There was a dispute in court on whether or not the video showed “Bridge Guy” in the background and what exact words the girls said was also in dispute. Bunner’s testimony concentrated mostly on the technical aspects of extracting video from the phone. He also showed several photos from the phone. Jurors had eight questions after Bunner’s testimony—the most they’ve asked once the prosecution and defense finished with a witness. Richard Allen faces four counts of murder in connection with the girls' deaths. His trial is currently underway with testimony in its fourth day.