Find zero force members of a truss

[MienTommy]

I was wondering how members CL and JE are zero members? They both have forces applied to them, so why would it be zero? The attached image is the solution.

 

[Baluncore]

Loads are applied to points C, D and J.

Load D is supported by the triangle DGA, that is by the straight chords alone.
The upper chord ABCDEFG is under compression, the lower GHJKLA is under tension.
Load J is supported by the triangles JDA and JDG.
Load C is supported by the triangles CKA, CKD and DKG.

Members BL, CL, EJ and FH have not been mentioned so they transfer no force with this loading.