I (21M) just found out my brother's (17M) girlfriend is MIA missing person and I'm not sure what to do.

Throwaway account because my family doesn't know and I'm trying to keep it that way until we can figure out something. I'm sorry if this is all over the place, I just didn't want to make a post until I had all the details but I've been feeling guilty and unsure on what to do.<br><br>My brother's girlfriend is Sandeep Kaur, also known as Tina or Nippu (her nickname in the family). She's a missing person that has been missing for over 2 years. I found out yesterday when I was going through some old messages on my phone and I found pictures my brother sent me of them together. I went on his phone when he was sleeping in his car at a gas station (he's a traveling musician) and looked through his pictures. I recognized her immediately because the case is so big in my area (she was from India but went missing in California).<br><br>I have always been so confused on how my family knew her. We lived near her family for about 2 years before they moved. I didn't really think much of it because I thought it was weird that they would keep a relationship with her, but I figured they were just being polite. It also explained why my brother was still in contact with her because he was still talking to her.<br><br>I also found out that my family has been lying to her family for the past 2 years. They told her that she's dead and that they don't know what happened. They also told her family that they didn't want to talk to them because it would be too hard and they didn't want to be a burden.<br><br>My brother and his girlfriend have been together for about 2 years. They lived with us for most of that time and then they moved in with her parents. We still saw them regularly. He has always lied to me and told me they were broken up. I believed him because he was so adamant about it.<br><br>They would spend time together, but she was never at our house. They always went to her house or met at some park or something. When we saw her, it was usually when we were out somewhere and she was with her friends or family. She was always so happy. She was a sweet girl and she didn't seem to be in danger. I remember thinking that she seemed too happy to be in an abusive relationship. But my brother was always so controlling and she would never wear anything revealing. It seemed weird to me at the time because I didn't know the culture as well as I thought.<br><br>I've been trying to find out what happened to her, but I'm not sure where to start. I know the police have been looking for her for a long time, but they don't have any leads. My main concern is that if the police find out that she's alive, they'll be able to investigate what happened to her and hopefully get her back. If they find out that she's alive, they'll probably want her back. I don't want her to be punished or anything, but I feel so guilty that I know something.<br><br>My main concern is that my brother will find out I told someone and he'll try to stop me. I'm scared of what he might do, but I also feel like I need to tell someone.<br><br>I'm not sure if I'm just being paranoid and my brother might not care that I told someone. I don't know what he's thinking or how he feels. I don't know if he loves her and wants her back or if he's relieved she's gone. I know he was controlling and would get angry at her when she didn't do what he said, but he's also a really good person.<br><br>I know I need to do the right thing, but I'm not sure what the right thing is.<br><br>TLDR: My brother's girlfriend is MIA and he lied to me about them being broken up. I feel guilty but I don't know what to do.