Faecal matter was found in at least three different areas in the couple’s hotel room. The state say this shows Susan Rohde was murdered.
Beagle Watch Armed Response employees took part in a protest at the security company’s headquarters on Smit Street in Fairland.
The alleged poaching kingpin was arrested with three other accused Nozwelo Mahumane, Moshe Thobela and Romance Khoza.
Unlike national parks, private rhino owners receive little help from government against poaching and must pay security money themselves.
Two convicted rapists were sentenced to 13 life sentences and 240 years in jail for rape and robbery sprees in the Brits area in 2016.
Prem Basdeo, who is accused of killing his wife, has alleged he suffered abuse at the hands of the police.