Jagger Thomas Jost

ATLANTIC CITY -- A 21-year-old Atlantic City man suspected of killing his then-girlfriend's 2-year-old son was arrested Monday, according to a report.

Jagger T. Jost was taken into custody by U.S. Marshals in his hometown Monday, more than eight months after the boy died of blunt-force trauma to the abdomen, Philly.com reported.

Authorities says Jost killed Vernon Gaylord Sylver Jr. on May 16, 2015 in Greesnboro, N.C and then married the child's mother less than a week later. The boy was her son from a previous relationship, the report said.

Jost is charged with first-degree murder and felony child abuse. He was being held in the Atlantic County jail awaiting extradition to North Carolina.

Vernon was born in Philadelphia in November 2012.

Jeff Goldman may be reached at jeff_goldman@njadvancemedia.com. Follow him on Twitter @JeffSGoldman. Find NJ.com on Facebook.