as it turns out, heidi allen's i.d.s not locked away in a sheriff's filing cabinet somewhere. a deputy actually carried it around with him. one day, two years before she disappeared, he lost it, dropped it in the parking lot of the d&w convenience store where heidi would one day become a cashier. the idea was later found. >> it is essentially like outing an undercover officer or protected witness. >> yes. the idea that it is out there, that they believe she is an informant, is a problem. >> what was important for lisa peebles about the heidi identity card was that even though it was in the brothers case, it apparently had never been given to gary thibodeau's defense team. she argued that is something called a brady violation, prosecutors are required to turn over any evidence that might help the defense. lisa filed a motion to have gary's convictions thrown out. john o'brien broke the news, writing the first of many heidi stories to come. >> it just took off and people are devouring it. >> a rock had been kicked over. t

, all of these new years later, the two families, the thibodeaus and allens are left with the same questions. what did happen to heidi and will we ever find a shallow grave? >> i think eventually something is going to talk. >> someone's going to say something. >> i might not know, i might have to wait. but i will die trying and fighting for her. >> she went to work early on an easter sunday morning and was never seen again. ♪♪ >>> this sunday, targeting biden. >> the resolution is adopted. >> the house votes to formalize 0 an impeachment inquiry of president biden. >> i think the evidence is compelling. >> even though republican lawmakers have yet to present any evidence linking the president to a crime. >> we don't know what the crime is. >> while the president's son defies demands he testify before congress. >> my father was not financially involved in my business. >> plus border battle. republicans call for major changes to u.s. border security in exchange for sending more aid to ukraine. >> putin is banking on the united states failing to deliver for ukraine. we must prove him wrong. >> the border is an absolute