Triessl has represented the family of Monica Burgos, who was murdered in Mexico by her husband Bruce Beresford-Redman, Perry Alexander, Jr., and Lois Goodman, a US Open referee accused of murdering her husband with a coffee mug (her case was ultimately dismissed by the Los Angeles District Attorney's Office). Triessl has also provided legal commentary on a variety of local and national television programs, including "Dr. Drew On Call", "Dr. Phil", "Good Morning America", "Inside Edition", "Jane Velez-Mitchell", "Nancy Grace", "The Early Show", "Extra", "The Insider", and "Today". Cases for which she has provided legal commentary include the Jodi Arias murder trial, the George Zimmerman verdict, the "Jackson vs. AEG" trial, the Kelly Thomas verdict, prosecutions of Miranda Barbour, the Oscar Pistorius trial, the investigation into allegations that Stephen Collins molested underage girls, Robin Thicke's copyright infringement lawsuit, the Ferguson indictment verdict, and the guilty verdict in the Chris Kyle trial.