DeHaven said the man's wife came outside when she heard an unusually long, steady sound from the chain saw. She found him lying on the ground, he said.
When rescue workers arrived, the man was semi-conscious, DeHaven said.
No identification was available Tuesday.
Burglary suspect arrested in Delaware
An 18-year-old Washington County man was in custody Tuesday in Delaware, charged with crimes there and a break-in of a Hancock residence earlier this year, according to Maryland State Police.
John Vincent Cohill Jr., of no fixed address, is also a suspect in a break-in this weekend at that same home, police said.
Property from that house, located at 5102 Western Pike (Md. 144), was reportedly recovered in Cohill's custody in Delaware, police said.
State police have placed a detainer on Cohill so he will be brought back to Hagerstown to face the additional charges, police said.
Electrical problem sparks fire at market
A fire call to County Market Tuesday sent Hagerstown firefighters scurrying to the 835 W. Hillcrest Drive in Hagerstown, where an electrical problem in a backup generator sparked a fire.
Capt. Brian Pile said a wire inside the panel wore out and shorted out, causing a small fire and a light smoke condition in the store.
"We stood by until an electrician got there,'' Pile said.
Hagerstown men face gun charges
FREDERICK - Two of three men arrested early Tuesday on weapons charges at the I-70 Truck Stop are from the Hagerstown area, Maryland State Police said.
Bobbie Simmons, 25, is reportedly wanted for failing to appear on drug charges in Washington County courts, police said. He was being held on $7,500 bond Tuesday at the Frederick County Detention Center.
Ernest Socks, age unknown, was charged after police found a loaded .38 caliber handgun in a 1988 Toyota driven by Socks. Socks was being held on $5,000 bond Tuesday.
Both Simmons and Socks were charged with transporting a handgun.
The third man, Brian Keith, of North Carolina, was also charged with giving false information to a police officer, police said. His bond was set at $10,000, jail officials said.
All three men were jailed shortly after the 12:30 a.m. arrests.
Boy, 15, arrested in theft of Explorer
A 15-year-old Ohio boy has been apprehended in Charles County, Md., driving a 1995 Ford Explorer stolen from Hagerstown Ford over the weekend, according to Washington County Sheriff's deputies.
The Explorer was stolen from the Wesel Boulevard dealership after a Ford van, stolen earlier in Ohio, was ditched, deputies said.
Man arrested in vehicle break-ins
Mt. AIRY - Citizen calls to Maryland State Police early Monday led to the apprehension of a 19-year-old Mt. Airy man in connection with the break-in of vehicles.
Todd Archibald, of Christy Acres, was caught two hours after residents of the Oak View Drive area of Mt. Airy reported to police that they saw two people breaking into cars.
Troopers set up roadblocks and with assistance from a Maryland State Police helicopter, the vehicle containing Archibald and a juvenile was stopped on Main Street.
Archibald was charged with tampering with a motor vehicle and given an underage drinking citation - his second in two weeks, police said.
Police investigate carnival thefts
JEFFERSON, Md. - The theft of $837 worth of carnival equipment from the Jefferson Fire Department grounds over the weekend is being investigated by Maryland State Police.
Among the items taken were a karoake machine, tools and visual equipment, police said.
Hand and power tools, valued at more than $1,000, were reported taken Monday from a machine shop at 14337 Broadfording Road, Washington County Sheriff's deputies said.