Man poses as a doctor to ride with firefighters

He has been in trouble before for impersonation.
CINCINNATI (AP) -- A con man who convinced firefighters that he was a doctor so that he could ride along on ambulance runs is now charged with practicing medicine without a license, police said.
Fire officials say John Holliman, 20, never touched a patient. "He was just riding," Assistant Fire Chief Bob Kuhn said.
Holliman has been in trouble before for pretending to be someone he's not, authorities said.
"He's a really good liar," said Bill Hedrick, an assistant prosecutor in Columbus.
His office has repeatedly prosecuted Holliman for such things as making a false fire report or telling patrons in bars that he was a police officer and investigating them for crimes.
Police in Cincinnati say Holliman produced documents that said he was a Lexington, Ky., doctor, and convinced firefighters that he was authorized to ride along on emergency runs.
Police arrested Holliman at Cincinnati fire department headquarters Wednesday after a firefighter told officers he suspected someone was giving firefighters false information to ride with them.
Holliman was charged with falsification. Investigators later charged him with practicing medicine without a license, a felony.
Kuhn, in charge of department operations, said it isn't clear how Holliman convinced firefighters that he was authorized to go on ambulance runs.
Fire administrators and police investigators had not finished confirming how many times he rode in ambulances, Kuhn said.
"Him being a doctor is new," Hedrick said. "I'm only used to him being a firefighter and a police officer. At least, he hasn't been a prosecutor yet."