Parameter problem

I have this sproc:

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER PROCEDURE [dbo].[usp_CrimRecTest]

@.caseID nvarchar(12),
@.lastName nvarchar(25) output,
@.firstName nvarchar(20) output

AS
BEGIN
SET NOCOUNT ON;

SELECT dbo.tblCASENOMASTER.CASENO, dbo.tblCASEMAST.LASTNAME, dbo.tblCASEMAST.FRSTNAME
FROM dbo.tblCASENOMASTER LEFT OUTER JOIN
dbo.tblCASEMAST ON dbo.tblCASENOMASTER.CASENO = dbo.tblCASEMAST.CASENO
WHERE (dbo.tblCASENOMASTER.CASENO = @.caseID)

END

How do I get values into @.lastName and @.firstName? I have tried this:

SELECT dbo.tblCASENOMASTER.CASENO, @.lastName = dbo.tblCASEMAST.LASTNAME, @.firstName = dbo.tblCASEMAST.FRSTNAME

I got this error:

Msg 141, Level 15, State 1, Procedure usp_CrimRecTest, Line 22
A SELECT statement that assigns a value to a variable must not be combined with data-retrieval operations.

Help!

Thanks.

Change
SELECT dbo.tblCASENOMASTER.CASENO, @.lastName = dbo.tblCASEMAST.LASTNAME, @.firstName = dbo.tblCASEMAST.FRSTNAME.....

to

SELECT @.lastName = dbo.tblCASEMAST.LASTNAME, @.firstName = dbo.tblCASEMAST.FRSTNAME......

Denis the SQL Menace
http://sqlservercode.blogspot.com/