Authorities in Northern Florida have increased the reward amount for information on the whereabouts of a former marine who fatally shot a Nassau County Sheriff’s Deputy on Friday.

As of Monday afternoon, the reward for information has been increased to $54,000.

Officials say 35-year-old Patrick McDowell fatally shot deputy Josh Moyers on Friday during a traffic stop before taking off.

Moyers was rushed to an area hospital where he passed away on Sunday.

More than 200 officers including members from the Camden County sheriffs office in Georgia have joined the search for McDowell.

Authorities have focused their search on a five-square mile area around Callahan, just miles outside of Jacksonville.

Officials say they have found several items of interest including a flashlight and possibly McDowell’s hat.

During a press conference Nassau County Sheriff Bill Leeper described McDowell as “rabid animal.”

“If you’re in a home and he breaks into your home and you have a gun, blow him out the door,” said Leeper. “He’s like a rabid animal, he will kill you with his mindset. What he did to that deputy is uncalled for and unnecessary and he needs to pay for it.”

McDowell  has been diagnosed with PTSD, depression, seizers and is described as a skilled marksman.

He is considered armed and dangerous.