Hawzah News Agency (Toronto - Canada) - Mohamed-Aslim Zafis, 58, was volunteering at the International Muslim Organization on Sept. 12 when he was stabbed to death.

The mosque has called on Toronto police to investigate the killing as a hate crime. Guilherme “William” Von Neutegem, 34, has been charged with first-degree murder in the death of Zafis.

Von Neutegem made a brief court appearance by video in September.

Investigators said they have not ruled out Von Neutegem in the investigation into another stabbing death that happened in the city five days earlier.