David MacCoubrey said he awoke in his apartment on Brookside Drive around 7:07 a.m. local time (6:07 a.m. ET) to the sound of gunshots "10 meters from my bed."
MacCoubrey told The Associated Press that three gunshots woke him up, and as many as 17 more have been fired between that time and around 8:30 a.m.
He says his apartment complex has four buildings in a square, and it sounded like the shots were coming from the middle of the complex.
Mr MacCoubrey said police have been searching the complex and he has been sitting on the floor of his home away from windows.
Officials identified the slain officers as Sara Mae Burns, 43, and Lawrence Robb Costello, 45. They did not release the names of the two civilians who were killed, and said only that the suspect was a 48-year-old Fredericton man. They did not release information about a possible motive or the weapon.
"It was scary," said Marlene Weaver, who was in bed on Friday morning when she heard shots. "It takes you back to the shooting in Moncton."
She was referring to a 2014 incident in which three Royal Canadian Mounted Police (RCMP) officers were killed and two wounded in Moncton, New Brunswick, about 195 km (121 miles) from Fredericton.
Friday's shooting occurred three weeks after a gunman walked down a busy Toronto street, killing two people and wounding 13.
https://www.yahoo.com/news/least-four-people-killed-canada-shooting-police-115146599.html