A Hudson Valley man who's considered "armed and dangerous" has been added to the FBI's 10 Most Wanted list.

On Wednesday, the FBI Westchester County Safe Streets Task Force announced Eugene Palmer, 80, was added to the FBI’s Ten Most Wanted Fugitives list. Palmer is wanted on a federal warrant for unlawful flight to avoid prosecution in the alleged murder of his daughter-in-law in September 2012.

“After nearly seven years and thousands of hours of investigative work, we hope the addition of Eugene Palmer to the FBI’s Top Ten list will yield substantive tips to this fugitive’s whereabouts," Rockland County District Attorney Kevin Gilleece said.

Palmer allegedly shot and killed Tammy Palmer outside her home near Willow Grove Road in Stony Point. Palmer left the scene in a pick-up truck, which was later found near Harriman State Park in Rockland County.

Tammy's dead body was found in Haverstraw.  Palmer was last seen entering Harriman State Park. Police searched Harriman State Park looking for Eugene Palmer but he's never been found. Family members said he was very familiar with the wooded area in the state park that's located in Rockland and Orange counties.

Investigators believe Palmer fled the area after the murder, so they requested FBI assistance.

“When detectives and prosecutors realized Palmer most likely left New York state after the murder, they asked for our help and we filed a federal warrant. That warrant allows our agents all over the United States and the world to investigate, and opens up a vast number of resources to find Eugene Palmer and bring him to justice,” William F. Sweeney, assistant director in charge of the New York Field Office of the FBI said. “We can’t bring back Tammy Palmer, but we hope finding the man who is accused of murdering her will offer some solace to the grieving family.”

If you search the FBI's "Ten Most Wanted List" Palmer is currently placed second.

According to the FBI, Palmer "should be considered armed and dangerous." Palmer is known to be interested in auto racing and is a car enthusiast and is also an experienced hunter and outdoorsman, the FBI says.

Palmer is described as being a 5'10" 220-pound white man with gray balding hair and brown eyes. His left thumb is deformed.

The FBI is offering a reward of up to $100,000 for information leading directly to the arrest of Palmer. Anyone with information should take no action themselves, but should immediately contact the nearest FBI office or local law enforcement agency. Tips can also be submitted online at tips.fbi.gov.