Trump rally gunman Thomas Matthew Crooks used encrypted messaging accounts on various platforms located in Belgium, New Zealand and Germany, according to a member of a congressional task force investigating his assassination attempt against former President Donald Trump.

Rep. Michael Waltz (R-Fla.), one of 13 lawmakers tapped to serve on the House bipartisan task force, told reporters at a Wednesday press conference at the Trump Hotel Chicago that the “overseas accounts” piqued his suspicion immediately regarding the shooter’s motives.”

“Why does a 19-year-old kid who is a health care aid need encrypted platforms not even based in the United States, but based abroad – where most terrorist organizations know it is harder for our law enforcement to get into?” asked Waltz.