Police have said he acted alone in the murder, but have not come out and said the accused has put the phone in the dam, and he needs to be linked to the dam, otherwise there is a good chance someone else has place the phone in there.
And If tests on the phone come back that the phone was put in there after the accused was in prison, then again someone else has done it
If the police suspect others involved, they would be keeping their mouths shut
Everyone has an opinion on this case and my opinion is there is more to this, with others involvement.
The accused has to be found guilty as well in a court of law, otherwise he could walk out as a free man