Gardaí investigating a shooting in Ballymun that caused the deaths of "an innocent young man and a mother-of-six" say they are pursuing 300 lines of inquiry.
Antoinette Corbally, 48, and 30-year-old Clinton Shannon were killed in the attack at a house on Balbutcher Drive on Wednesday.
Two other people were injured during the attack, which is believed to be gang-related.
Gardaí are seeking two gunmen over the attack.
Chief Superintendent Lorraine Wheatley said that post-mortem examinations showed both victims died of multiple gunshot wounds.
She said that tests are being carried out on an automatic machine gun and a handgun found at the scene.
Gardaí are also appealing for information on two cars that were found at the scene - a silver Opel Zafira, registration 08-LS-3101, and a Volkswagen Golf GTI, registration 06-LH-3466.
