LUSK, Wyo.–Lusk Police Department has zeroed in on an unnamed person of interest in the mysterious death of a 54-year-old Navy veteran.

Ken Van Buskirk, 54, disappeared from his home on July 28, 2014. Nearly 18 months later, his body was found near a water tank in downtown Lusk, an area that had previously been searched multiple times in daylight with the help of cadaver dogs. Ken’s death remains a mystery, and his 83-year-old father, Ernie Van Buskirk, wants answers. Check out part one of this story here.

LUSK, Wyo.—By all accounts, Ken Van Buskirk was no angel. Along with an extensive rap sheet, Ken also had a drug addiction and drinking problem that had led to several arrests and DUIs, his father, Ernie, told the Wyoming Truth. Ken’s lifestyle put him in the company of other drug addicts, Ernie noted; he thinks they may have killed him.

LUSK, Wyo.—The 83-year-old father of a man whose body was found on a hilltop is seeking answers in the unsolved death of his son, as local police take a second look at the open case.

Kenneth “Ken” Van Buskirk went missing on July 28, 2014. According to family members who spoke to Ken the evening he disappeared, the 54-year-old Navy veteran reportedly sounded impaired and spoke of two men in his house who were trying to kill him.