From the little that seems to be available at the time of this comment, it feels like someone confused and disturbed, not like a properly planned-out-attempt at anything.
The Secret Service received information from local police about an alleged “suicidal individual” who was traveling from Indiana and found the man’s car and a person matching his description nearby.
“As officers approached, the individual brandished a firearm and an armed confrontation ensued, during which shots were fired by our personnel,” the Secret Service said in a statement.
The man was hospitalized. The Secret Service said his condition was “unknown.”
Oh, please, oh please, I hope it won't be (succesfully) used for even more repression.
Yupp, that's why I added (succesfully) to my plea. Unfortunately, I think you are very right.