LaPere, 26, who started a software company and was named one of Forbes' "30 Under 30," was found dead at a Baltimore apartment Monday.

Authorities have arrested the man suspected of killing of Baltimore tech entrepreneur Pava LaPere, a U.S. Marshal confirmed, as police announced plans to reveal details of the capture following a major manhunt.

Baltimore police said they planned to announce the "arrest of murder suspect Jason Billingsley" in a news conference at 11 a.m. ET Thursday. No further details were released and police did not immediately respond to requests for comment from NBC News early Thursday.

Deputy U.S. Marshal Albert Maresca Jr. confirmed Billingsley's arrest to Baltimore-based NBC affiliate WBAL-TV. He said the suspect, who is 32, was apprehended at a train station in Bowie, Maryland.