Police do not believe Bowen is connected to Ripken's July 2012 kidnapping. That case remains unsolved, though police and the FBI received a fresh round of tips after Cal Ripken Jr. raised the reward for information leading to an arrest to $100,000 in August.

Budnick said Bowen does not resemble the suspect in the kidnapping, who police said was caught on surveillance video at a Walmart in Middle River. That man has been described as being in his mid-30s to mid-40s, about 5 feet 10 and 180 pounds, with short brown hair.

Court records list Bowen, 33, as being about 2 inches shorter and 50 pounds lighter.

"They're not too similar, really," Budnick said of the physical descriptions. "And other than that, there's no indication he was involved. But again, that's something investigators will be looking at."

The FBI has been informed of the attempted carjacking but is not involved in the case, said Special Agent Richard Wolf, a spokesman for the Baltimore field office. "They're obviously looking at it to make sure it's not related," he said. "We certainly have a vested interest to make sure it's not related."

Bowen's last known address was the 800 block of Lafayette St. in Havre de Grace. He faces eight criminal counts, including attempted armed robbery, attempted armed carjacking, assault, weapons and drug charges.

Bowen's public defender, Laura Garcia, said at a bail hearing Wednesday that her client is a lifelong resident of Harford County and has a 6-year-old child. He received his GED in 1998 from Harford Community College and had been doing construction work for the past five years, she said.

Court records show that Bowen had been out on $7,500 bail at the time of the latest incident. Mary Buck, assistant state's attorney in Harford County, said at Wednesday's bail hearing that Bowen has violated his probation twice and has six other pending criminal cases. He has 12 prior arrests, which resulted in four convictions, she said.

District Judge Susan Hazlett denied bail for Bowen on Wednesday pending a preliminary hearing.

In Aberdeen, residents pondered what could be done to protect Ripken — and themselves from violence.

"I feel like, honestly, there needs to be more done," said Justin Copeland, 31, who says Aberdeen needs more neighborhood watches and better social services to help the homeless.

Others say Cal Ripken Jr. should hire bodyguards for his mother.

"Mr. Ripken should make somebody watch over her," said Vi Ripken's neighbor Monique Neely.

Baltimore Sun Media Group reporter Bryna Zumer contributed to this article.