my hen has the same problem.
Tell me about it, mine went off her rocker after a few years of life and it was a good thing when the fox got her, lol!
She started fine, as the others did, but slowly and surely escalated into universal aggression over about four years of life. Eventually she progressed from being a good mother to killing her own babies, from not harming other turkeys to displaying shocking force (sufficient to smash a large stainless steel pot halfway flat) in her efforts to smash another turkey hen (who later died from her injuries), from being safe around humans of all ages to launching herself at my face regularly... So enraged over everything.
I've had similar problems with toms who were fine until one day when the hen sat down in invitation to mate, instead of mating normally like they always had, they began ripping and tearing at the hens' necks and faces in rage, trying to kill the hens, sometimes while also trying to mate with them; from being safe and careful with their babies to killing them and carrying them around in their mouths as they squatted and shuffled around attempting to ejaculate into the corpses; from being safe with humans of all ages to becoming two-faced and sprinting for your back as soon as they saw it, only to spin away as soon as you turn back, like they were doing nothing. On/off switch or trigger for extreme aggression...
Not all turkeys are like this. But plenty are. I want to work on them, personally, get them back to being socially stable and balanced individuals. I've found it's more than doable with chooks and other animals, why not turkeys as well? For this, culling of the psychotic ones is necessary. Unfortunately in a series of random events I've lost all my remaining turkeys... Right now all I have is a tom I was given, who seems alright, not a great physical type but not terrible... And (most importantly) he's well past the age most other toms turned, yet remains nonviolent. So perhaps he's the right one to begin building a better line of turkeys with.
It's like some kind of psychosis in them; I really do think most commercial type turkeys have some deficiency in a hormone that is involved in keeping them mentally calm; perhaps low tryptophan levels, which I think is quite likely because turkeys used to be used for tryptophan as their flesh used to be known to be high in it, and those highest in it are peaceful, almost dozy, whereas the others are anxious and aggressive and unable to settle down. Recent testing on commercial turkeys finds they're lower tryptophan than pork, apparently. Hmmm.

Maybe a coincidence, maybe not. I'm betting not.
Best wishes.