Amissing 82-year-old Sturgis, S.D., man who has relatives in North Dakota might be heading this way, and people are being asked to keep an eye out for him and his pickup.

The missing man, Lyle Howard Smith, has high-blood pressure, is an insulin-dependent diabetic and doesn't have medication with him, said Tom Wilts, chief deputy of Meade County Sheriff's Office in Sturgis.

Wilts said that on April 7, Smith - brother of Edna Vogel, 85, who lives north of Mandan - visited a friend at a Sturgis assisted living facility. He then left there at 7 p.m. to go home to a house he shares with his stepson in a subdivision two miles east of Sturgis.

Smith reportedly planned to return the next day to his friend's assisted living facility to pick the friend up and take her to an Easter meal at another assisted living facility in town.

But none of that happened. He didn't make it home April 7.

His stepson reported him missing at about 8:30 a.m. Sunday after seeing his stepfather's pickup wasn't there and discovering he hadn't come home.

Wilts said as part of his investigation he checked the FBI's National Information Crime Information data base and found out that at 1 a.m. Sunday, Smith had been stopped for a speeding violation in Fort Pierre, S.D., which is about 150 miles east of Sturgis.

But at that point, Smith hadn't been reported missing, and he was allowed to drive away. Stanley County Sheriff's Office reported Smith appeared tired, and it was suggested he get a hotel room. The last time they saw him, he was heading south out of town.

"That's the last time anyone has seen him or heard from him," Wilts said.

Smith, a retired truck driver, is a lifelong Sturgis resident, member of the local coffee group and well known around town, Wilts said.

Vogel, his sister in Mandan, said Friday that the last time he visited was about two years ago. She said his stepdaughter drove him up because of his diabetes and other health issues.

Vogel said she just talked to him April 7 and he "sounded fine." She said it's possible he could have decided to drive up and visit, but he never mentioned that possibility in their April 7 conversation.

She said they have a brother in Fargo, too.

Vogel said she's been calling her brother's number often, hoping he'll answer.

Wilt said Smith weighs 160 pounds, is 5 foot 6, has white hair, is balding, has blue eyes and wears glasses.

Last time he was seen, he was wearing blue jeans, brown shoes, a maroon-colored Carhartt jacket and a tan Wells Fargo baseball cap.

He was driving a blue Ford Ranger pickup with a South Dakota license plate:49SX91. The pickup has a custom paint job design on the sides that is light-blue in color and resembles splashing water.

"This is really abnormal,"said Vogel's stepson Eddie Schmeltz, 39, on Friday.

Schmeltz, who works at a Deadwood, S.D., casino and has lived with Smith for 11 years, said Smith is usually clear-headed, but in the last couple of weeks has been forgetful about taking his medications.

Schmeltz said he thought his stepdad was going to Sturgis on April 7 to buy a bed and go to the grocery store.

At about 7 p.m. April 7, Schmeltz said he started to worry about Smith still being gone and called his mom, Smith's ex-wife, at the assisted living facility where she lives. She told him Smith was there visiting. Schmeltz then left the house, returning at 11 p.m. He said Smith still wasn't home when he got back, and thought he might have spent the night at the assisted living facility.

When he woke up Easter morning, Sunday, and his stepdad still wasn't home, he really became worried.

Schmeltz said when police told him he had been seen in Fort Pierre, "I knew he was probably out of his mind."

Smith usually doesn't drive far by himself. Usually Schmeltz or his sister drives on trips longer than about 30 miles, Schmeltz said.