From reading a lot of criminal complaints, I can tell they started looking at him seriously last fall, and these are the only two runs that Ralo directly participated in, during the time frame laid out in the complaint.
But, criminal complaints are not all the relevant information, though the way it went down, and the way the SA wrote it, I am thinking is pretty much the majority of their case.
Now, after they start digging, I am sure they expect to find more chargeable offense, esp. firearms violations and purchasing assets with drug proceeds. Remember, now they have phones, ipads, financial documents, pictures, hard drives, other evidence found in his homes or cars.