MILWAUKEE (WITI) -- A man convicted of first degree sexual assault more than 20 years ago is accused of attacking Milwaukee women again. Milwaukee police have been using two high-tech tools and one old-school tool to link the suspect to the crimes.
44-year-old Scott Dykas has been out of prison since 2008, but is still on the sex offender registry.
Since an arrest a few weeks ago, he's not going anywhere fast.
Back in August of 2013, a Bay View woman reported a man with a hoodie grabbed her and groped her. The same type of thing was happening on Milwaukee's East Side -- as many as 20 reports in all.
On January 7th, a search warrant says a woman in the 2600 block of Maryland flagged down a squad after she was groped and managed to get away.
Police chased down the man she pointed to, and arrested him.
Dykas has been on the Wisconsin sex offender registry since a first degree sexual assault conviction in 1988.
Now, the parolee is back in jail.
That makes women in the Milwaukee area feel better, but none will let their guard down.
"At night, you never know who's going to be around the corner or hiding behind a tree. It's kind of scary to think about," one woman told FOX6 News.
In a search warrant affidavit, police are now asking for Dykas' DNA -- a swab of the inside of his cheek in order to compare DNA left at the scene of one of the attacks.
That's not all police have that points to Dykas as a suspect. The search warrant says a check of the Milwaukee Police Department's automatic license plate recognition system places Dykas' car near some of the crime scenes.
FOX6 News has previously showed a similar system that Greenfield police use to continuously photograph license plates on parked cars.
In Dykas' case, police say there were 45 captures of his license plate -- many occurring within the geographical area of the reported sexual assaults.
Dykas has not been charged with the new sexual assaults at this time. Right now, police are holding him for running away from law enforcement.