Where in the article does it say he was ever accused of commiting a crime......I'm pretty sure it doesn't. FTA:
"We know who you are! You downloaded thousands of images at 11:30 last night," the man's lawyer, Barry Covert, recounted the agents saying. They referred to a screen name, "Doldrum."
So, are you being argumentative or just obtuse?
After all of that, you don't think he was at least arrested?
No. Why take him into custody? He's in his home at 6:30 in the morning while you're searching it with a lawfully obtained search warrant. Where's he going. So long as you don't arrest him, you don't have to Mirandize him.