A man found shot dead on the outskirts of Londonderry was stripped and had his hands tied, Foyle assembly member Martina Anderson has said.
His body was discovered on Braehead Road, near the Irish border on the road to Letterkenny, at about 2230 GMT on Wednesday. Police are at the scene.
Ms Anderson said the attack bore the hallmarks of a paramilitary-style killing.
"Let those who are responsible come out and tell us," the MLA added.
"The vast majority of people in Derry would absolutely condemn what has happened here in their city."
"There is no place for this in our society.
"We all want the gun taken out of our community, we are absolutely disgusted with what happened last night, how dare they."
A forensic examination of the scene, which has been cordoned off, is under way.
Detectives have appealed for help to identify the murdered man, described as 6ft, with receding brown hair and aged 35 to 40.
A priest who visited the area where the body was discovered, Father Stephen McLaughlin, said it was a "chilling" sight.
"A man was murdered on a quiet country road in the darkness of night.
"It's something that's hard to take in, there's just a feeling of complete revulsion, you feel sick to the pit of your stomach," he said.
Politicians and community leaders have voiced concerns that dissident republicans may be responsible for the attack, but their involvement has yet to be confirmed.
SDLP Foyle MP Mark Durkan said: "I totally and absolutely condemn this brutal and crude murder, which is a throwback to the very worst of our past."
DUP East Londonderry MP Gregory Campbell said the killing bears a "remarkable similarity" to murders by the Provisional IRA and others during the troubles.
"Whilst there is much talk of stopping those responsible from dragging us back to the past, this can only be the case if the community gives whatever information they have to the police.
"It is only full cooperation between the police and the community that can bring the perpetrators before the courts," the MP added.
"I extend my sympathy to the family involved and those who have lost a friend and loved one."