chad perdelli is live at the courthouse in bellefonte, pennsylvania with more on the testimony. chad. >> reporter: yes, sarah, the highlights this morning troubling text messages, the district attorney focused on them and e-mails before and after piazza' death. in the hours and days after tim piazza' death allegedly from the alcohol-fueled hazing inside the fraternity, fraternity members began to understand the trouble they were facing. state college police detective was back on the stand this morning. he testified fraternity president brendan young texted his girlfriend you don't comprehend the situation, adding at the at the end of the day i'll be account accountable for it you will. prosecutors hammered at the alleged coverup. he wrote make sure the pledges clean the basement and get rid of the evidence of alcohol. casey replied they are taking care of basement. police testified that a search of a computer covered up group chat. 18 from fraternity members are charged in the death of piazza. on day one of the preliminary hearing, the piazza left the courtroom when the video of