A man fatally stabbed his wife and later died in a car crash after leaving their home, police said.The stabbing happened at about 5:30 a.m. Sunday at a home in the 4700 block of South Rural Street, said Kendale Adams, Indianapolis police public information officer.Police and medical personnel arrived at the home after a frantic 911 call, finding Melissa Field, 44, dead from stab wounds.Three children, ages 8 to 15, were also in the home at the time. They were not injured, but two of them witnessed the stabbing and tried to revive their mother by performing CPR, police said."In a heated argument, it's believed the husband became angry and violently attacked his wife," Adams said in a news release. "He then left the residence and lost control of his vehicle on slippery pavement about four blocks away and crashed head-on into a tree in the 4600 block of Carson (Avenue)."The man, Kevin Field, 51, was pronounced dead at the scene.The children were placed in the custody of family members.Neighbors were incredulous after they learned about what police said happened in the home and just down the street.Police said there was no record of previous domestic problems in the home, but at least one neighbor knew something was wrong."They both seemed unhappy to me, but never in my wildest dreams would I have imagined that Kevin would do something like this," said neighbor Christina Hollinger. "I've never known Kevin to be a violent person."Police are trying to determine if Kevin Field crashed on purpose or if it was accidental.