scripting boolean in business rule

Hello,

I created the Expression below to check if the current user is the lastone of an array and if yes it should return true. apparently the code below doesnt work. can u help me out?

false;

// Create an array

var Users = new ArrayList();

var userID = Me.Case.WorkingCredential.UserId;

// Get all users

var SearchUsers = CHelper.GetValueAsCollection(<Entscheidungsprozess.Empfanger[NutzerID != null]>);

// Count how many users comply

var HowManyUsers = SearchUsers.size();

if(HowManyUsers > 0)

{

// Add each user to the array

for (var i=0; i < HowManyUsers; i++)

{

var idUser = SearchUsers[i].getXPath("NutzerID");

Users.Add(idUser);

}

}

if(SearchUsers[HowManyUsers-1] == userID){true;}