And one source of possible clues has already been compromised.
Angara's brother in law was given the keys to her car by authorities and told to drive it away from the plant and back home.
They let him drive away without inspecting it. Stupid.
http://www.northjersey.com/page.php?qstr=eXJpcnk3ZjcxN2Y3dnFlZUVFeXkzJmZnYmVsN2Y3dnFlZUVFeXk2NjUyMTI2
Angara was working on a 7-foot-wide corridor that runs between a cement wall lined with instruments and the water tank, which is covered with steel plating, Avigliano said. It would have been impossible for her to fall into the tank accidentally if the grate had been in place, the prosecutor said. As a result, he said, he is treating the death as a possible homicide.
http://www.nj.com/news/ledger/jersey/index.ssf?/base/news-8/1108104060208160.xml
Hmmmmmm...
1.) stupid
2.) brother-in-law not husband?