Shooting Range Key

[Chainsaw.Aardvark]

So, in the open world maps, there will be a locked off area of the shooting range, and trying to manipulate the door it says "find the key". Despite what I feel to be a through search of the are, I can't find it. Any clues as to where this item is?

[愛天使亞夜]

I found the key once in the car trunk beside the shooting range, but I am not very sure it must be somewhere in the shooting range.
However, even you open that door, you get a random loot in the closet, but the key is also be found in a random loot location. so take it easy.

[$Panas$]

try check under car and table

[Number 6™]

Mine was dangling from the empty tree branch right next to the locked door.

[astrea_anerada]

I was also looking for the key and it was at the same place where Number 6™ just mentioned, it was dangling on a tree branch exactly next to the locked door.

Thank you Number 6™ for the info

[Adamos]

I found it under the table close to the cage, however as said by 愛天使亞夜, it's random loot, I got nothing of value in there.