From that video, looks like the suitcase had a pink tag/decoration on the front. It seems a little odd for police equipment to have a giant pink tag like that on the front, but I could be wrong. FWIW, both of those people had on black gloves whereas the guys carrying the door and the chair out of the house all had purple gloves - and we're certain the latter two were evidence.
Black gloves are often heavier grade gloves. They’re thicker and offer more protection. The purple gloves are general exam gloves, offering protection but don’t offer the level of protection black and brown gloves do