I've gone back and forth about this. I don't think Steffon was involved at all, and I'm not sure that they didn't investigate him. He kicked DW out on 4/1 - the official reason was an argument over dishes, but I have heard it had to do with DW assaulting his younger sister. Also the 3/23 incident where DW gave the police Steffon's name. I don't think these 2 were very close in May, 2015.
As far as Darrell, I believe they did investigate him although I admit it's troubling they didn't pull his texts. They showed a lot of phone records yesterday of DW making multiple calls to Darrell's phone - always the same phone number - with not a lot of call back from Darrell. I believe Darrell helped after the fact but I don't think he had anything to do with planning murders or break in. My sense is that DW was kind of a nuisance to Darrell, who was wrapped up in his own stuff. Just my opinion though.
Actually I agree with you on this. I believe daron did these crimes and got darrell involved to help him after. I always wondered If darrell wanted some of that money. He was seen with daron at Walmart on the evening of the 14 and daron wasn't arrested until the 21. I wasn't clear on when darrel said he realized that they were after daron do you know if they said that in the trail. I did do a money trial it seemed to me most of the money was recovered accept for about 5,000. I don't know, like I said I don't think Darrel murdered anyone but something doesn't sit right with me.