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Actually, that should have said 'known terrorist suspect'. Take the foil hat off. He will get tried under Federal statutes, not local. There is no death penalty in Mass. but Federal statutes have always retained that punishment. I would expect that if he is coherent the trial will be covered much like the McVeigh trial was.

Probable cause gets lots of scrutiny in the courts. Cases are lost and charges are dropped if probable cause cannot be established and any related evidence gets ruled inadmissable. Cops are more careful about that sort of thing.

My understanding (which may be wrong) is that evidence would be ruled inadmissable if it was discovered in a way that compromised the 4th amendment- but they won't convict him on the evidence found in the boat, they'll convict him on the evidence in his apartment etc.

The coppers had nothing to lose in terms of securing the prosecution in raiding peoples houses- they'd just lose the ability to prosecute the home-owner if they found (for example) a forest of Marijuana plants in the living room whilst looking for the bomber.

But the bombers conviction was nailed on before they started raiding peoples houses.