To my knowledge they haven't ruled out it being connected or not connected and to me that says they haven't tested the DNA cause they'd say since there's articles about a serial killer. They need to look for mutual friends and anything else to count the other DNA out so we know its two different people. Then again sometimes people work in twos but the amount of stuff in common is what makes me wonder. Also the way heeft her close to the road etc screams look st me. He isn't trying to hide it he's over confident he's experienced and the lighting her on fire could have just been interrupted cause maybe he was on lunch break and saw the time and had to stop. I want to know an exact timeline of when she left and when she died and when they reported it and when they found her so we can try to calculate how much time he had for it. He wants attention though and isn't trying to hide anything and is comfortable in the area.
LE has not commented on the DNA in both cases , they have not said it matches, and not said it doesn't.