Summary
- A fourth person has been arrested and charged with the murder of Sikh separatist leader Hardeep Singh Nijjar in Canada
- Canadian police had previously arrested and charged three Indian men in connection with the case
- The arrested individual, Amandeep Singh, has been charged with first-degree murder and conspiracy to commit murder
- Nijjar, a Canadian citizen campaigning for Khalistan, was shot dead outside a Sikh temple in Surrey, Vancouver
