Smith's girlfriend, Petara Cordero, was struck and killed last September by a driver on Interstate 90 in Cleveland. She had been a passenger in Smith's car and exited the vehicle after it had a tire malfunction and hit the median.
The couple had just had a daughter together the month before.
The Browns released Smith on Dec. 3. He decided this year that he wanted to resume his career and had signed with the Carolina Panthers, but he was released in July.