https://www.dailymail.co.uk/news/article-7183475/Tragic-story-El-Salvador-father-daughter-drowned-crossing-Rio-Grande.html
Here is the story on the drowned family. Lots of pics. They were at a camp in Mexico already, but didn't want to wait legally.
The grandmother says they weren't fleeing violence and she begged them not to go, but father said he wanted to make more money.
Maybe he was fleeing drug dealers or becoming a drug dealer?