system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Could Bucky have killed Peter Parker's parents?

As we all know from civil war bucky killed howard and his wife for hydra. Now in the comics peter's parents are agents of shield that do get killed but not by bucky. Ok peter is 15 being born in 2000-2001, winter shoulder takes place two years after battle of new york in which peter would be a child, now could it be possible peters parents worked some what for shield and before the battle of new york hydra ordered bucky to kill them. Maybe they were working on radioactive spiders and things got a little too deep. But could bucky have killed peters parents as well.
gpt
Peter's parents have not had their professions identified; and while the MCU takes a lot of inspiration from the Ultimate Universe (where what you mentioned about Peter's parents being Shield agents is true, unlike the 616 version wherein they were CIA) we can't say anything beyond a solid "maybe" for this answer.

And while we know that HYDRA was using the Winter Soldier for missions over the course of the decades between 1945 and 2014, we only know one mission in particular, the assassinations of the Starks.