A second suspect has been arrested in connection with an armed robbery investigation in McAllen. This development is part of an ongoing case, with details available from local news sources. Further information on the arrest and investigation can be found through KRGV, a local news outlet.

They have reported on the arrest of the second suspect, providing updates on the case. For the most current and detailed information, readers can refer to the original report from KRGV, which may include additional context and specifics about the armed robbery and the suspects involved.