[1] Glenn was shuttled between relatives until the age of 15, when he was taken in by Charles and Mary Henley, parents of a friend in Columbus, who would serve as his legal guardians.
The Henleys' son (June) also played in the NFL and broke some of Gale Sayers' rushing records at the University of Kansas.
He didn't play organized football until his sophomore season, becoming a two-way player at wide receiver and cornerback, while also returning kicks.
[3] Glenn walked-on at Ohio State University, because he grew up admiring the football program, even selling soft drinks at Buckeye games as a teenager.
[4] At the time, the team employed a run-oriented offense led by running backs like Raymont Harris and Eddie George.
He saw limited action in 10 games as a backup behind Chris Sanders at flanker, totaling 8 receptions for 156 yards (sixth on the team) with a 19.5-yard average.
As a sophomore, he played in 10 games as a backup to both Sanders and Joey Galloway, posting 7 receptions for 110 yards (sixth on the team) with a 15.7-yard average.
He enjoyed a breakout season as a junior after Galloway graduated, starting 12 out of 13 games, sitting out with a separated shoulder against the University of Minnesota.
His best game came against University of Pittsburgh, making 9 receptions for 253 yards (school record), a 28.1-yard average, 4 touchdowns and a two-point conversion.
At the end of the year, he was recognized as a consensus first-team All-American and won the Fred Biletnikoff Award as the season's outstanding college football receiver.
Patriots head coach, Bill Parcells, was outspoken of his desire to draft a defensive player and how he was overruled by team management.
He was declared inactive for the fifteenth game against the Buffalo Bills because of an illness and he was suspended by the team for the season finale against the Baltimore Ravens.
On December 29, after missing the fifteenth game against the Buffalo Bills because of the flu, he was suspended for the season finale by head coach Pete Carroll, for failing to show up for treatment.
On December 18, he was given permission to stay in Buffalo with teammates Ty Law and Troy Brown, to avoid flying in bad weather on the condition that the 3 are back in Foxboro the next day for a team meeting.
Even with this type of turmoil, he still remained the best wide receiver on the team, making 16 starts for the first time in his career, to go along with 79 receptions for 963 yards (12.2-yard avg.)
On August 3, he was suspended the first four games of the season for violating the NFL's substance abuse policy after missing a mandatory drug test.
[10] He left training camp (it has been speculated it was a pay dispute), forcing the Patriots to send a letter to his agent giving him five days to return or risk additional suspension.
On February 28, 2003, Glenn was traded to the Dallas Cowboys in exchange for a 2004 sixth round draft choice (#188-Andy Lee)[15] reuniting with his former head coach Bill Parcells.
[17] It was Tony Romo's first season as a starter at quarterback, with Glenn playing opposite wide receiver Terrell Owens.
On July 25, 2008, Glenn was released by the Cowboys due to health concerns over his right knee, and because he did not sign an injury clause as part of his contract.
[22] Glenn worked on several nonprofit projects with his girlfriend at the time, a Dallas County Law Enforcement officer which targeted Domestic violence awareness.
[23] Glenn died at the age of 43 following a one-vehicle rollover traffic accident on November 20, 2017, in Irving, Texas, near Dallas, which left his fiancée slightly injured.