In "By Any Means, Part 4," following the death of Phillip Stroh, Julio accepts the promotion to lieutenant and leaves the Major Crimes Division to join the Criminal Intelligence Division. At his promotion ceremony, Julio makes a speech thanking his friends for what his time with them has given him and stating how hard his decision was. Before leaving with Mark, Julio privately tells Rusty to continue his sessions with Doctor Joe as Rusty will need them, appearing to know that Rusty killed Stroh instead of Provenza as Provenza claimed