Kaegan Jude Solet, 47, was taken into custody by the Terrebonne Parish Sheriff's Office following a stabbing spree in the Ashland Drive area that killed four people and critically injured a juvenile.
Disturbing Facebook posts by Solet from 2015 surfaced amid the active investigation, including a March post that read 'track it down n kill it'.
Solet has a prior arrest history, including being charged in January 2019 with the murder of a homeless man and in December 2019 with attempted second-degree murder, though he was not convicted or was found not guilty in those cases.