MINEOLA, N.Y. (AP) — It probably happens to most drivers.
Heading home after an overtime shift and the eyelids flutter. Up all night with a sick baby and you rest your eyes for just a moment on the way to dropping off the kids at school. Drowsy drivers often make it safely to their destination, but for some, the consequences are devastating.
"To this day I still hear my boys crying out, yelling for Daddy, when they were told the news," says Jackie Califano, the widow of a New York police officer killed when a suspected drowsy driver plowed into his parked cruiser in 2011. "The pain we experienced is beyond description and continues to be."
More than 11,000 deaths were attributed to drowsy driving from 2000 to 2010, according to federal statistics. And experts say it's a problem that can't easily be solved by new laws because proving sleepiness behind the wheel is difficult, if not impossible.
Authorities can easily determine how much alcohol is in a driver's blood, or whether someone has used illegal drugs, or even if someone has been texting while driving.
But quantifying drowsy driving is not an exact science, prosecutors say, and laws banning commercial truck and motor coach operators from driving more than 11 hours a day and requiring 10 hours between shifts are flawed because they often rely on the drivers to report those hours themselves.
In a drowsy driving case late last year, a tour bus driver was acquitted of manslaughter and negligent homicide in a 2011 Bronx crash that killed 15 people. A jury rejected prosecutors' arguments that Ophadell Williams was so sleep-deprived from working another job that it affected his reflexes as much as if he was intoxicated.
That verdict influenced a Long Island prosecutor's decision this year to drop negligent homicide charges against the truck driver involved in a fatal crash that killed Califano's husband. Ultimately, the truck driver pleaded guilty to a misdemeanor reckless driving charge and paid a $500 fine.
"If you are going to try and make fatigue — sleepiness — a criminal legal issue in a motor vehicle accident, you have a lot, lot more to prove," said Patrick Bruno, who defended Williams in the bus crash case.
Maureen McCormick, who heads the Nassau County vehicular crimes bureau, explained that to obtain a conviction in the police officer's death, she would have had to prove "serious blameworthiness," ''moral blameworthiness" or "dangerous speeding," a standard she said is impossible to meet.
"Drowsy driving is something that generally has happened to everyone," McCormick said. "The question is what do we do as a society when that feeling starts to come?"
When McCormick read a statement at the truck driver's sentencing on behalf of Officer Michael Califano's widow, veteran police officers and journalists wiped away tears.
"Michael, Christopher and Andrew now have to grow up without him," McCormick said as Jackie Califano sat in the front row of the courtroom, hugging her sons, 16, 13 and 8. "No more doing homework with his help. No more sports with him. No more family vacations. No more horsing around with dad. No dad for Father/Son Night at school. No dad at home to turn to when they need advice."