"He adopted a child with Down Syndrome as a baby. He was that interested to both teach children who have a hard time learning and also have a child with a disability," his brother Walter said.
But Walter said David had to leave his profession after he was diagnosed with Early Onset Alzheimers. He was only in his mid-50s at the time. Walter believes that disease drove him from Maryland to central PA.
"He just got in the car and went the wrong way," Walter Frasier said. "There is no relationship between Pennsylvania and David."
On July 15 2012, David stopped in the Jennerstown Dollar General parking lot after running out of fuel.
"He got some more gas, called AAA and ended up on the interstate near the Claysburg exit where he ran out of gas again. That's the last he was seen," Tpr. Jeff Petucci of State Police Hollidaysburg said.
In all, his trip was close to 200 miles out of his way. Police took to the ground and air in the search. The efforts though, didn't further the case. His car was impounded by state police, but produced nothing. A chopper was sent up again just days ago to search, but still no sign of the 65-year-old. Eyewitnesses, they believe, are the key to finding him.
"Maybe the missing part of the puzzle was somebody who saw him and thought nothing of it. Just a man walking down the road," Walter Frasier said.
Police said they received some calls from people saying they saw Frasier walking near the Claysburg exit. They said he was headed southbound in the northbound lanes of I-99.
A concern is, he could have walked miles. His mind wasn't well, but his body was in good shape. For his brother, the chances he's alive are slim.
"I do not think he's alive. I do not think anything evil has happened to him, I'm not much of a conspiracy theorist. I just feel he was completely lost and confused and he took a walk in the woods and that's where he is," Walter said.
The number for State Police in Hollidaysburg is 696-6100.