Two men have been arrested by detectives investigating the murder of Jim Donegan outside a west Belfast school last year.
Jim Donegan (43) was shot dead as he waited to collect his 13-year-old son from St Mary's Christian Brothers Grammar School in December.
Detectives said the same killer had been waiting for his victim at the scene five days earlier, but Mr Donegan did not pick up his son that day.
Suspects aged 53 and 39 were detained at Musgrave police station in Belfast today under anti-terrorism legislation, a PSNI statement said.
Investigators have linked the killing to the INLA.
Mr Donegan was gunned down in front of schoolchildren and parents on Tuesday December 4.
He was shot eight times with a semi-automatic handgun.
