They did what to them secretly? LOL
Cougars roam. And I mean really roam. They have collard some and tracked movements that, in some cases, criss cross a good chunk of the country. It's not surprising that there are more coming to the Midwest.
That said, If I ever find myself in a tree with a cougar on opening day of deer season as the sun comes up, I won't be calling the DNR. (whichever kind of cougar that might be)
Introduced. I misspelled. When the wildlife camera got the one on film in west central Indiana, the DNR folks began telling about migrations eastward, which I suppose technically could happen, but they would have to swim some significant rivers to do it. The DNR in Indiana has done this, believe me.