Howell was born in Chicago where he grew up watching White Sox baseball. The speedster would go on to play college baseball at Kirkwood Community College, and after his freshman year he was drafted by the Kansas City Royals in the 2017 draft. Howell would not sign with the team and in his sophomore year he thrived by ending the season with a .401 batting average and stole 40 bases in 60 games.  

In the 2018 draft Howell would sign with the team that selected him in the 12th round, this being the Milwaukee Brewers. He would even be teammates with longtime RailCat, LG Castillo when they both played for the Wisconsin Timber Rattlers.  

In April of 2022, Howell and Brett Sullivan were traded to the San Diego Padres for catcher Victor Caratini. In 2024 he would go to the Atlantic League and put up huge numbers for the Lexington Legends, Howell played in 73 games hitting 14 home runs, stealing 31 bases, and slugged .497.  

This past season, the right-hander spent the season with the Cleburne Railroaders, playing in 45 games, bashing six home runs, and stole eight bases on eleven attempts.