Is it customary to allow people to remove items from a house where there's been a murder-suicide?

[Baitball Blogger]

Very sad article about a mother of two who was facing financial problems. She killed herself and two children. There was a nasty divorce involved and before she did it she called or emailed her ex-husband to let him know she was planning to do it.

There doesn't seem to be any question that it happened that way. But what I thought was odd was that on the video two people, which didn't look like they were part of the police dept. removed a cello from the house on the same day it happened. Is that customary to allow access to the scene of the crime on the first day of an investigation? How do they know these people have rightful ownership to the property?

http://www.orlandosentinel.com/features/blogs/gone-viral/os-florida-mom-murder-suicide-20140115,0,6062591.post

[Retrograde]

1. Sadly, souvenier seekers seem drawn to tragedies

and it goes way back. I don't think the people were "allowed" access: I think they just went in and helped themselves.

[EC]

2. Maybe they were repossessing

it, since the woman was having financial problems? Since it's not evidence- maybe the cops let them have it. Or maybe it belonged to someone else?