Dr Njue's troubles started years back following the mysterious death of Benedict Karau, a polygamous man. When Karau died in 2015, his youngest wife Martha Gakuo, reportedly told the rest of the family members that her husband had choked on food.

Some of Karau’s family members highly doubted Martha’s claims and pushed for an autopsy. Gakuo reportedly supported the family's decision to have an autopsy done but insisted on hiring her own private pathologist. That is where Moses Njue came in.

The post-mortem, according to reports filed at the Director of Public Prosecution’s office, was conducted by Njue and Sholastica Kimaniat at Consolata Mission Hospital in Meru County.