Are you saying the police did not need warrants in this case?
If that is not what you're saying, explain your point.
Amendment IV
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
I am sure that in court the police would rely on the exigent circumstances exception to the 4th amendment.
I am merely pointing out what the amendment says. Most of the commentary I am seeing is asserting that the 4th amendment was violated because searches were conducted without a warrant. That is NOT a violation of the 4th amendment. Read the amendment and see.