One can enter normally but not know the code to diable the alarm which could be set off by the door opening or motion detectors.
It is hard to know the real story but consider how you would feel if you were denied entry to retrieve sentimental items belonging to your dead daughter and were afraid they might "disappear" over time as others had free access to the house!
Shame on you for castigating the Rocha's as indecent considering all they have gone through. Shame on you.
Yeah, shame on me for not turning a blind eye to an illegal act perpetrated by someone just because they've 'gone through a lot'... shame on me, indeed...
The Petersons changed the locks AND the alarm code the day before.
Then Jackie Peterson came on LKL and insinuated declared that Sharon had access to the house all along. If Sharon had the key and access to the code, that would indicate to me that they DID have access to the house, but the Petersons, for whatever reason, changed their minds and decided not to let them in.