The victim's body was discovered near Elkhorn Boulevard and 10th Street.
The bike path across Dry Creek from Roy Hayer Park is a peaceful place. It's where Les Whitaker often takes his lunch breaks.
"I come down here all the time to let my dog run and a lot of kids come down here and play," Whitaker said.
But between 2 and 5 p.m. Sunday detectives said it is where the 76-year-old Hispanic man was brutally attacked.
"At this point, we believe this was a deliberate act, it was a violent act and it was not an accident," said Sgt. Shaun Hampton.
The victim did not survive.
Whitaker said he would often see the man hanging around the park. "Nice guy, walked with a cane. I couldn't see why anybody would hurt him, to tell you the truth," he said.
Detectives are not yet releasing the victim's name but FOX40 was told he did live in the neighborhood for years.
Whitaker said there are homeless who camp throughout the area but that most of them are harmless.
"They normally sit right here on these benches and don't bother nobody," Whitaker said.
Detectives are not yet releasing a motive. However, with a BMX course, go-kart track and baseball field nearby they believe witnesses may be the key to missing clues.
"Really we're looking for anyone that may have seen anything and that could be something as simple as this old man walking around with someone else," Hampton said.
Whitaker hopes whoever is responsible is brought to justice. "Can't believe they done it to an old man like that."