As far as I know he was there, and admitted full responsibility for it
"Abimael Guzmán told the Truth and Reconciliation Commission “We, doctors, reiterate that we will not avoid our responsibility [for the Lucanamarca massacre]. I have mine, I’m the first one responsible, and I will never renounce my responsibility, that wouldn’t make any sense.”[
he admitted ordering it or he admited that it happened and he knew and didnt condemn in a shit happens short of way
As far as I know he was there, and admitted full responsibility for it
"Abimael Guzmán told the Truth and Reconciliation Commission “We, doctors, reiterate that we will not avoid our responsibility [for the Lucanamarca massacre]. I have mine, I’m the first one responsible, and I will never renounce my responsibility, that wouldn’t make any sense.”[