GARDAI investigating the tragic the brutal murder of Bogdan Michalkiawicz, stabbed to death at his Letterkenny apartment last month, are still quizzing a suspect.
The 41-year-old was found dead by his brother on Wednesday May 15 at Riverside apartments, two days after he was last seen alive.
A 37-year-old man was arrested on Thursday night.
He is still being held at Letterkenny Garda Station.