Céline Dion is coping with the loss of her beloved husband René Angélil, followed by the death of her brother just two days later. Click here for the full story, only in PEOPLE.
Since she was 12 years old, Céline Dion has had René Angélil by her side as both a mentor and as her partner in life.
With three sons (René-Charles, 15, and 5-year-old twins Eddy and Nelson) between them, the singer and Angélil – who died Thursday at 73 after a long battle with throat cancer – "were so much on the same wavelength," says producer and friend Ken Ehrlich.
"Her heart is in pieces," says a source close to the singer, 47, who also lost her brother Daniel two days after Angélil died. "She's extremely heartbroken."
In the last year, the singer rarely left her husband's side. Angélil relied on a feeding tube, and had both "good and bad days," says the source. "Some days he could get up and walk around the room, play with the kids. Some days he was too tired."
"She didn't travel anywhere," adds the source. "She wanted to be with him 24/7 in case anything happened."
For much more on Dion and Angélil's love story and how the singer is focusing on the couple's children, pick up the latest issue of PEOPLE, on newsstands Friday.
On the day he died, Dion was at home with their three children, says the source. Angélil's funeral – taking place at Notre-Dame Basilica in Montreal where the couple wed 21 years ago – is set for Friday.
With reporting by JANINE RUBENSTEIN