Aliyah may not even remember the accident, said Spector, or memories may come to her later in life when another traumatic event happens.
"It's always true that some people can cope better than others," she said. "It depends on what's going on in the family and the strength and support they have to pull things together. It will take a lot of work to get over it. It's not going to be easy."
People like to blame others, according to Spector.
For a time, the world speculated that Princess Grace was a passenger in the car driven by her 17-year-old daughter Stephanie when it plunged off a mountain road in Monaco in 1982.
Stephanie denied the rumors in an interview with Paris Match in 2002, and said though there may have been an argument she was not to blame.
"When anybody dies, you want to have someone to blame, God or spiritual powers," she said.
Best known for his stand-up comedy on "The Howard Stern Show," Schimmel had previously had two heart attacks and had recovered from non-Hodgkin's lymphoma. He also said he had cirrhosis of the liver and was waiting for a liver transplant.
Schimmel got his start with the comedian Rodney Dangerfield. He had appeared on several HBO programs, including his own special, "Unprotected."
This week, fellow comedian Joe Rogan wrote on Twitter: "I loved that dude. He was SUCH a nice guy, and f**ing hilarious? He was one of the nicest guys in comedy."
"It's unbelievable," said radio show host Danny Bonaduce. "I booked him in every city I ever worked, and as he got bigger, I got bigger."
Just two weeks ago, Schimmel, who was a frequent guest, arrived on the set of the "Danny Bonaduce Show" with a documentary film crew.
"He had worked that night in a club and he was carrying a camera crew who were documenting him," said Bonaduce, 51.
The radio host praised Schimmel for being a "survivor and a gift to comedy," then asked the crew to shoot the scene again.
"I did it in the past tense, as if he was already dead," said Bonaduce. "Looking right at him, I said, 'If Robert were alive today, it would be wonderful to tell him what he had done for the world of comedy to keep it above board and something to aspire to.'"
"It was so weird," said Bonaduce. "I was crying."
Though they were not close friends, Bonaduce knew Schimmel for 20 years.
"I met most of his family," he said. "What Aliyah is going to have to cope with depends on her intellectual capacity for devastation. After Hiroshima, nobody made a sound. In real horror there is silence."
"What she needs to remember is she swerved out of the way of another car," said Bonaduce. "She did the right thing."