Searching for my family member Diego, separated at the US border in 2018

I'm looking for my family member, Diego. In 2018, our family was torn apart near Los Angeles. One moment we were together, the next we were being pulled in different directions. My family had been targeted. We left in the middle of the night. Diego had just turned 19 when it happened. The separation happened because of the chaos at the border processing center in Los Angeles. The thing that haunts me is remembering fishing trips to the river, where we never caught anything but always had fun. Someone who knew them mentioned seeing them in 2023. Every lead has gone cold. Diego would be around 27 years old now. Last I saw them, they were small-framed but tough, with sharp features. Every time I see someone who looks like them on the street, my heart stops for a moment. If anyone has any information about Diego, please reach out. Even knowing they are alive would mean everything.