Two recent articles from the McAllen newspaper. The first is four recent deaths discovered.
The second a longer article about staffing and role sheriff deputies play. One thing to note about a border wall is it doesn’t really change any staffing situation and an unstaffed barrier will have folks workarounds.
Meanwhile hiring is still rather slow (9 months according to this article) and unclear if CBP has done much to reduce attrition.
A push to speed up the hiring process for Custom and Border Protection applicants on Wednesday as a bill introduced by Senator Martha McSally clears the senate committee.
CBP staffing page
Note: Also some deaths further west