Police in Boone County continue to investigate Sunday's murder.

ZIONSVILLE, Ind. (WTHR) - Police made an arrest overnight in connection to the investigation into a jogger's murder on a popular trail.

They say they discovered a handgun while investigating the homicide Sunday morning.

That led to two search warrants and a man's arrest.

Investigators believe 28-year-old David Meschino bought the handgun found by officers near the Big 4 Rail Trail.

Police won't say if that gun was the one used to kill Samuel Bennett.

So far, no one has been arrested for the murder itself.

Bennett, from Zionsville, is the son of prominent Indianapolis attorney, Jackie Bennett.

Early Sunday morning, investigators say the 23-year-old parked at Jennings Field then went for a run.

A quarter mile in, someone shot him.

A dog walker discovered Bennett's body near a retention pond along the trail, by the Quail Run Apartments, behind Zionsville Town Hall.

Police say they found no evidence that he was robbed. His wallet was still on him.

But now we've learned they did find a gun nearby. That led to search warrants late Monday night in the Village Walk subdivision and at the Walnut Hills apartment where David Meschino's lived for two years.

Neighbor Spencer McCourt saw the police lights and watched the warrant search and subsequent arrest.

"They were just calling the man's name, telling him to step outside saying they have a warrant," McCourt said. "They had the battering ram, everything, whole nine yards."

Meschino faces a felony charge of criminal transfer of a firearm.

Neighbors were surprised he's connected to this case.

"I'm just shocked. Can't believe it," said neighbor Mary Brown. "He's a super nice guy, gentleman, he was always taking my trash out for me."

"He's always been a weird guy but never expect that of him but then again, you never know anybody," McCourt added.

Investigators are still reviewing surveillance footage from cameras on the Town Hall building, but they say it was dark at the time early Sunday morning, so it's not clear if they captured anything. Police also reminding people if you use the trail, use the buddy system and remain vigilant.