Edit: I've edited the title to make it clear that India is making this allegation. Unfortunately since it just happened we dont know much else about the man, but that accusation is something he has in common with the previous assassination, so it's worth mentioning rather than the story just being "another guy from India got killed" which didn't really highlight the correlation with the other case.
Alleged by parties who have all the incentives to shape that specific narrative.
What if I just started following you around and alleging you're a pedophile? Then, what if you happen to be murdered? The headline would read, "Alleged Pedophile Gunned Down".
How much would the word "alleged" mean to you then? Do you see the problem now?
I didn't watch the video, but trying to Google him revealed two competing names: Sukha Duneke seems to be how the Indian press is referring to him, but the Canadian press is using Sukhdool Singh Gill.
Indian news sources are, like, uniformly terrible. Best case the article's grammar is so bad I feel like I'm having a stroke; average case it's also opinionated as fuck. That makes this absurdly hard to research.
The grammar thing is common for India. English is like the only countrywide language so it's the language of business and a lot of media... but because everybody speaks it as a second language it's kind of DIY grammar. I don't know if it's a actually a coherent dialect with consistent rules that are just different from Western English or just everybody is winging it.