Tanzanian police believe wildlife activist may have been tracked by his killer

A police insider has told the Guardian that the killers of Wayne Lotter may have been following him

Police believe Wayne Lotter's killer may have followed and targeted the conservationist when he was shot on Wednesday, according to inside sources.

Lotter was stopped and then fatally shot while travelling by taxi from Dar es Salaam airport to a hotel. He had been working in Tanzania for many years, exposing and jailing wildlife poachers and traffickers, and he had received a number of death threats. Tanzania's director for criminal investigation, Robert Boaz, said a murder investigation was underway.