UPDATE: The man has been found alive, and is home:
Volunteer searches for a missing Lambert High School graduate were called off Tuesday afternoon.
Search-and-rescue efforts by authorities are expected to continue into Tuesday night for Byron Grogan, a 19-year-old University of Georgia student and former cross country runner at Lambert who was reported missing by family early Tuesday after he went out for a run at Chattahoochee Pointe Park at 9 p.m. Monday.
The Forsyth County Sheriff’s Office announced on Facebook that volunteer searches will resume on Wednesday at 9 a.m.
A large contingent of authorities and local volunteers searched the park and Chattahoochee River several times. The effort brought in more than 150 volunteer searchers, including about 20 inmates from the Forsyth County Jail. Law enforcement officers were mobilized from various agencies, including the Gainesville Police Department, U.S. Park Service as well as fire departments from Forsyth County, Johns Creek and Gwinnett County; boats from the Department of Natural Resources; and a Georgia State Patrol helicopter.
According to Cpl. Doug Rainwater, a spokesman for the sheriff’s office, Grogan’s car was found at the park at about 1 a.m. Tuesday.
“There are a lot of possibilities, but at this point, we have checked every single trail,” Rainwater said. “We are just searching now the best we can.”
Grogan was a former member of Lambert High School’s boys cross country team, finishing second on the team in 2016 as a senior when the Longhorns won the Georgia High School Association Class 7A state championship.
Grogan is described as being 6-feet, 175 pounds with brown hair. The release states that he was last seen wearing a yellow t-shirt, red shorts and running shoes.
Rainwater said that Grogan had no previous history of running away and was in perfect health.
He said anyone with any information on Grogan should call their main dispatch number at (770) 781-3087.
Brian Paglia contributed to this report.