What's the difference between stalker and staller?

Stalker

Definition:

(n.) One who stalks.
(n.) A kind of fishing net.

Example Sentences:

(1) The fact that the security service was in possession of and retained the copy tape until the early summer of 1985 and did not bring it to the attention of Mr Stalker is wholly reprehensible,” he wrote.
(2) David Stalker, CEO of UK Active , regards anything that gets women lifting as beneficial: "Some operators have opted to offer women-only sessions, others have moved their resistance equipment to less exposed areas.
(3) * * * Stalker, meanwhile, having made his decision, pursued Tape 042 with the utmost vigour.
(4) The review of rape investigations by Her Majesty's Inspectorate of Constabulary and the Crown Prosecution Service follows high-profile cases such as the "Night Stalker", Delroy Grant, who raped and assaulted elderly victims over a 17-year period in London, Kent and Surrey.
(5) There is no independent proof that Kammerer was a predatory stalker; there is only Carr's word for the pursuit from St Louis to New York; there is persuasive evidence that Kammerer was not gay.
(6) Mighty Deer Stalker Tough 10km off-road (and very muddy) run in Peeblesshire, Scotland, which starts at dusk.
(7) The anti-pornography organisation described the film's central figure, Jamie Dornan's Christian Grey as a "stalker and batterer".
(8) In another she spoke about visiting then-husband actor Sean Penn in jail, whose jail mates at the time included serial killer Richard Ramirez, aka the Night Stalker.
(9) The number of Stalker copies per genome and chromosomal localization vary among D. melanogaster strains.
(10) Rates of reoffending are high, perhaps unsurprising given that most stalkers suffer from psychiatric problems, but it is uncommon for them to receive specialist treatment as part of their sentence.
(11) Not because hackers had released Social Security numbers , home addresses, computer passwords, bank account details, performance reviews, phone numbers, the aliases used when high-profile actors check into hotels (a safety measure to keep stalkers away), and even the medical records of employees and their children .
(12) Today I want to go even further and offer protection at the first signs of stalking, stopping offenders in their tracks.” Garry Shewan, Greater Manchester police’s assistant chief constable and the National Police Chiefs’ Council lead for stalking and harassment, said: “We want to stop stalkers in their tracks.
(13) Between hearings he chatted with McCauley’s solicitor, Pat Finucane , much to the anger of watching RUC officers, who told Stalker that they regarded Finucane, who had represented many people accused of being republican terrorists, as being “worse than an IRA man”.
(14) "I know I'm really glad that that person's not following me around like a stalker!"
(15) Stalker began to think that special branch, supported by MI5, might be using informants to lure terrorism suspects into pre-planned ambushes, mounted by police officers who were indeed shooting to kill.
(16) Not that this only happens to women of course – I have had male friends who have ended up on antidepressants because of vile female stalkers.
(17) Most novel substrains are internally heterogenous which is indicative of the continuing Stalker transposition.
(18) This must be made a reality in prosecutors' day-to-day practice to ensure stalkers are put before the courts and that [there are] appropriate sentences and treatment."
(19) The transposons causing the mutations are: P element (5 alleles), gypsy (3 alleles), 17.6, HMS Beagle, springer, Delta 88, prygun, Stalker, and a new mobile element which was named roamer (2 alleles).
(20) The allegations that republican terrorist suspects were deliberately killed rather than being arrested led to an investigation by John Stalker, then deputy chief constable of Manchester, in the mid 1980s.