Correction: the police forces that intervened reported how the suspect was holding an object resembling an improvised explosive device when he was fatally shot.

Real life:

This bullet killed Vicki Weaver, who was standing behind the door in the cabin where Harris entered.[108] Vicki was holding the Weavers' 10-month-old baby Elisheba.

https://en.wikipedia.org/wiki/Ruby_Ridge

I've seen the same terms ("the bullet killed") used to describe the recent death of Halyna Hutchins on set of Alec Baldwin's film

OP’s quote misses context.

Vicky Weaver was killed through a door by a sniper firing at someone else.

A sentence before the quoted one attributes the bullet to the sniper.

Correction: there was an officer-involved explosion when security forces investigated a suspected terrorist's kitchen / chemistry lab.

Nah, can't say they were fatally shot by the police. Instead, you gotta word is as "They died from their injuries after being in a shooting involving police".