Interesting that in the scenario you presented you mentioned the possibility of someone possibly helping BM. I bring this up because I have been looking for how other male dna ended up on her helmet, bike handles, and in the car. It's just a thought that maybe someone else(another male) may have been involved. JMOO
In the summer of 2020, Defendant CB Agents Megan Duge and
Cailtlin Rogers, and the other Defendant CBI Agents determined foreign
unknown male DNA was found on various items of the crime scene including:
the exterior cushion of the bike helmet, Suzanne's bike seat, Suzanne’s bike
brakes and handlebars, Suzanne’s bike grips, the carpet by the Morphew’s
bed, on a stair in the Morphew home,and on the back seat and the glove box
of Suzanne's Range Rover that was parked in the Morphew garage.
100. Barry Morphew, along with nearly sixty other investigative
personnel working the scene and laypeople who could have possibly been the
source of the unknown male DNA, were excluded as sources of the DNA samples