Currently, Dodd is the most likely suspect there is a mountain of evidence against him including those incriminating tapes found in the storage locker. However, research does suggest that any number of gangs who sold drugs in the area and were in alliance with Dodd could also be suspects.
However, I personally think if gangs were involved it was under Dodd's guidance.
The other suspect, Candace's brother, may well still be a suspect in this case. When writing this article I was pretty sure her brother was wrongly accused. However, I have recently learned more about Mental Health and the problems her brother had. If her brother was having a particularly rough day, yes he could be responsible. Mental Health affects every person differently. I am still on the fence about her brother.
Would love to hear your thoughts and thank you for your question.