A few couples that had seen the Lake Worth Monster were the first to do so and, soon on, it became a phenomenon. Reporter Jim Marrs followed up on the story and wrote an article, which made front page news. The headline was, "Fishy Man-Goat Terrifies Couples Parked at Lake Worth." The couples described it as goat-and man-like with fur and scales.
John Reichart's car was supposedly damaged by the Lake Worth Monster after it jumped out of a tree. As proof, he had a foot-and-a-half-long scar on it. The police finally decided to investigate, yet yielded no answers.
Only one day after Reichart's incident, reports came in of a creature hurling a tire from a bluff at bystanders.
Allen Plaster Photograph
In October of 1969, a man named Allen Plaster took a picture of the Lake Worth Monster, which is the only photographic evidence of the creature. The picture shows a large, white body. The image was then given to Sallie Ann Clarke.
The "creature" hurling a tire was found out to a man. "Vinzens", as he was called, admitted in 2009 that he was involved with the tire-throwing. He claims that he was rolling a tire along with some friends that hit a bump and went into the air, eventually landing apparently very close to the bystanders.
KDFW, a Fox-owned television station in the Dallas/Fort Worth area, did a lengthy report in November of 1999 about the Lake Worth Monster. It interviewed some of those whom saw it, such as Reporter Jim Marrs and Sallie Ann Clarke. The report announced that some high school students admitted to police to have pranked people by dressing up in a gorilla suit and parading around the lake in 1969.
Though that doesn't explain why it would be goat like or have scales-
Info from Cryptid Wiki