GRAND RAPIDS, Mich. (WOOD) — State police are asking for the public’s help finding a man who was last seen in Grand Rapids.

Michigan State Police are searching for Logan Thayer Sweet who attended a concert Sunday night at the Listening Room, located on Ionia Avenue SW between Cherry and Oakes streets in downtown Grand Rapids.

Amber Gillette has known Sweet for the last ten years. Her friendship with his wife dates back to childhood. She said the two routinely talk, including leading up to the time he disappeared.

“He had advised her he was on his way home. And that was right about the last time his phone pinged, around 9:55 p.m.,” Gillette said.

Gillette said he was last seen heading south on Ottawa Avenue at around 10:15 p.m. He was driving a gray 2022 Kawasaki 650 sport bike. Sweet would’ve been home by around 11 p.m., but his wife didn’t see him pull in.

“She tried to put it in the back of her mind that, ‘It’s probably nothing, he may have stopped off.’ As morning came and he still wasn’t home, it was very concerning for her,” Gillette said.

As troopers continue to search, so are Sweet’s family and friends, who have a message for everyone in the area.

“If you see something, say something. No detail is too small,” Gillette said. “It’s really hard for all of us and we just want him home.”

Sweet is described as being around 6-foot and 240 pounds with brown hair and green eyes.

Anyone with information about his whereabouts is asked to call Trooper Jeff Olney at the MSP Wayland Post at 269.792.2213 or Allegan County Central Dispatch at 269.673.3899.