Two young men are in jail charged with the rape and robbery of a jogger on October 12th.
Police say a tip from a Chattanooga woman helped break the case.
It was an especially violent attack on the young victim.
One that apparently started as an attempted robbery.
The 30 year old jogger was near Finley stadium about 6 am when she was attacked by a man who took her MP3 player.
As she fled, another youth grabbed her and she was choked unconscious and raped.
Police launched an intense investigation, and turned up evidence from several sources, including a citizen, whose son brought home a suspicious piece of clothing.
CHIEF BOBBY DODD, CHATTANOOGA POLICE DEPT. "He was not involved in the rape. He brought the evidence home and his mother recognized it from some of the press releases we put out and she called us in regards to that."
Held on charges of rape and robbery is 18 year old Devontavious Bryant of College Hill Courts.
Also charged is a 16 year old, who in the custody of juvenile authorities.
Police began to piece the case together after learning two young men fitting the description were at City café downtown about the time of the incident.
CHIEF BOBBY DODD "Video that we have and some information that was developed by doing the investigation shows that both suspects saw the jogger pass by around 6 a.m. that morning..they did follow her southbound on Chestnut, past the trade center down to the Finley stadium area."
It turns out one of the men was wearing an afro wig while at the cafe, which attracted the attention of patrol officers who came in.
These photos of the two helped break the case.
The chief says this was not your usual sexual assault.
CHIEF BOBBY DODD " We're fortunate that this was an isolated incident, but certainly if you're going to be out traveling alone on side roads where there's not a lot of people not a lot of lighting...certainly use caution."
The concerned parent who called police played a big part in breaking the case, according to the chief.
Although police would not comment, that "piece of evidence" is thought to be a yellow jacket worn by one of the suspects in the café video.
Officers say the incident was not gang related.