The president of the Guru Nanak Sikh Gurdwara in Surrey, B.C., was shot dead inside a car Sunday night in the temple’s busy parking lot in what police are calling a targeted killing.

Investigators say Hardeep Singh Nijjar was killed just before 8:30 p.m. PT, soon after evening prayers had finished. Nijjar was a prominent leader in the Sikh community and is being mourned widely on social media.