Gunned-down teacher Rachael DelTondo was in a 'serious relationship' with the brother of the teenage boy she had previously found in a 'steamed up' car with late at night, DailyMail.com can reveal.

A search warrant, seen by DailyMail.com and the BeaverCountian, details how DelTondo, 33, had been seeing Rashawn Bolton, 31, for around six months.

She was caught in a steamed-up car in woodland near Aliquippa, PA, in February 2016 with his brother Sheldon Jeter Jr, then 17, and begged cops not to tell her then fiance, a millionaire businessman.

DelTondo was gunned down on her driveway on Sunday night after returning home from a trip to buy ice cream with a third brother - Tyrie Jeter - and a female friend.

No suspects have been identified and no arrests have been made but Beaver County District Attorney David Lozier believes DelTondo knew her killer. Cops claim it was a 'crime of passion'.

Police were seeking access to a 9mm firearm, any additional weapons and ammunition, written correspondence about or to Rachael DelTondo, notebooks, cellphones, laptops, tablets, any electronic devices capable of data storage and clothing - including a PlayStation. It is not know what they found.

Lover: Rachael DelTondo had been in a relationship since December with Rashawn Bolton, 31

Search warrant: Sheldon Jeter Jr was caught in a car with Rachael DelTondo in February 2016. He is Rashawn's brother and Rashawn told cops that three months ago he threatened to 'f*** up' the teacher

DelTondo's death comes just six months after the Pennsylvania Cyber Charter School teacher was suspended from her job over a leaked police report

According to the affidavit, on May 16, Beaver County detectives met with Rashawn Bolton at the Hopewell Township Police Department. Bolton told police that he was in a 'serious relationship' with DelTondo dating back to December 2017.

He told police that his girlfriend was feeling scared and she was being followed.

Bolton said that in summer 2017, he called his brother Sheldon and asked him if he was in a sexual relationship with DelTondo. Sheldon apparently responded, 'why you calling me bro you never call, you weird as f***'.

Bolton then told police that he was in front of his home with DelTondo three months ago when Sheldon pulled up in his car and then took off. Bolton said he called Sheldon and said if he had a problem he was to talk to him about it.

Sheldon Jeter then returned and pulled his silver Nissan in behind DelTondo's car, got out and approached them, saying: 'that b***h told me she was with Amy.'

Sheldon Jeter then turned to DelTondo and said: 'If my brother wasn't here I'd f*** you up.'

The affidavit also requested that police be allowed to seize Sheldon Jeter’s silver Nissan car and search it for a 9mm firearm, a gray or light-colored sweatshirt, cellphones or any electronic devices, and any forensic evidence including blood-stained items and ballistics.

The affidavit also provided further details of investigators’ interview with Sheldon Jeter Jr on May 14. Sheldon told investigators that he had been working on music all night long and demonstrated by showing the detectives his composition books with lyrics and playing them a song.

Later that day, Sheldon gave investigators clothing – khaki pants, a windbreaker, a hat and shoes that he said he was wearing on May 14.

On viewing surveillance footage from a local Wendys and Walmart, investigators discovered Sheldon wearing a gray or light-colored hooded sweatshirt that was different to the clothes provided.

Attorney Michael Santicola, who is representing Sheldon Jeter Jr, said in a statement: 'I have seen the warrant and I can tell you that I believe [Rashawn Bolton] has talked to my client and doesn't believe there was any problem.

'I don't believe the basis of that search warrant was very good, [...] the only thing new is a statement from back in 2017. We are not upset about anything they took from the search.

'A Playstation? I wish they would start focusing their investigation on other parties, they keep chasing red herrings in my opinion.'

Cops had removed bags of evidence after getting a search warrant which also covered Sheldon Jeter Jr's phone records.

Searched: Cops were seen leaving the home of Sheldon Jeter Jr with brown bags after their search. They also had a warrant for his phone records

Local cops: The hunt for the murderer is being lead by Aliquippa Police Department

Warrant served: Cops handed over the paperwork to get into Sheldon Jeter Jr's home. His attorney told DailyMail.com: 'He had nothing to do with this tragic shooting. He has had a long standing relationship with the victim.'

Rachael DelTondo, 32, (pictured) was standing on her mother's Buchanan Street driveway, in Aliquippa, Beaver County, on Sunday when she was killed in a hail of gunfire

DelTondo's murder came six months after she was suspended from her job when a February 2016 police report was leaked, revealing she had been found in a 'steamed-up' parked car with a 17-year-old boy.

According to social media, Jeter Jr is a former football player at Aliquippa High School, who graduated in June 2016. DelTondo taught elsewhere.

His mother was featured, but not identified by name, in a video report in November 2017 on WPXI.

Flannigan told the reporter that she was shocked to discover her son was the subject of a police report after being found in a 'steamed-up' car in a wooded area with DelTondo at 2am in February 2016.

Both Jeter and DelTondo, who was not his teacher, told responding officers that they were 'talking' and were 'just friends'.

Flannigan said: 'I really don't want to believe this is real. I really don't. I'm clueless right now. I'm at a loss for words, actually. I had been hearing rumors going around.'

Following the leak of the report from their department, Aliquippa Police said that incident involving Deltondo and teen was investigated twice and was 'unfounded'.

Wanted answers: Sheldon Jeter Jr's mom, Delsha Crumb Flannigan, said in November that she wanted to know the truth about what happened between police, her son and Rachael DelTondo

Police are attempting to establish suspects in the case which investigators have described as a 'crime of passion'. Beaver County District Attorney David Lozier said evidence appeared to show the perpetrator was known to the victim.

No suspects have been identified by police and no arrests have been made. The search warrant was applied for by Aliquippa Detective Captain Ryan Pudik and by signed by Magisterial District Judge Janet Swithart.

Court documents viewed by DailyMail.com and the Beaver Countian show that the subject of the search warrant is Sheldon Jeter Jr - the boy she was found with in 2016, who is now 20.

The warrant, filed on May 14 by the City of Aliquippa Bureau of Police, is seeking access to Jeter's iPhone, call records and geolocation data.

According to the affidavit, DelTondo had been picked up by female friend, daughter of Aliquippa police Sgt. Kenneth Watkins, around 8pm om Sunday night.

Sgt Watkins has been placed on paid administrative leave by Chief of Police Donald Couch because his daughter, who is a minor and is not being named by DailyMail.com, is involved as witness in the case, according to the Countian.

Also pleading innocence of the murder is Frank Catroppa - a businessman once nicknamed the Wolf of Aliquippa - told KDKA-TV: 'When you're with somebody for eight years, that's quite some time, you just hope to see that they at least get justice. It's a sad, sad case.'

His attorney, Stephen Colafella added: 'We wanted to be very, very clear publicly that Frank Catroppa has absolutely nothing whatsoever to do with what happened.'

According to the search warrant's affidavit, DelTondo and her friend went to Circle K convenience store, then visited a friend before DelTondo returned to her parents' home to change her clothes at 9.20pm. Ten minutes later, the two women left in Watkins' car and picked up Tyrie Jeter, brother of Sheldon Jeter Jr, in downtown Aliquippa.

The three drove to Hank's Frozen Custard in New Brighton to get ice cream. After about an hour, the friend drove back to DelTondo's home, leaving her there at 10.44pm and driving off with Tyrie Jeter.

Reports of gunshots were made four minutes later.

Innocent: Rachael DelTondo's ex-fiance Frank Catroppa - nicknamed The Wolf of Aliquippa - told KDKA-TC it was a 'sad, sad case' while his attorney Stephen Colafella added: 'We wanted to be very, very clear publicly that Frank Catroppa has absolutely nothing whatsoever to do with what happened.'

An affidavit shows DelTondo when to Circle K convenience store (pictured) visited a friend, and returned to her parents' home before picking up Tyrie Jeter

The 32-year-old and her friends drove to get ice cream and was dropped back off at her parents' home (pictured) at 10.44pm, and reports of gunshots were made four minutes later

DelTondo's engagement to Frank Catroppa was called off a few months after she was caught in a steamed up car with a teenage boy

According to the affidavit, Tyrie Jeter confirmed to police that he had gone to Hank's Frozen Custard with the two women and that DelTondo was left outside her parents' home at 10.44pm by the female friend who said she would return. The friend dropped Tyrie on Main Street, he told police.

Text messages from the female friend's phone revealed that she texted DelTondo at 10.41pm, 'go for a walk I'll pick you up after'. DelTondo replied, 'U serious?' 'Haha' at 10.44pm. Ten minutes later, she texted DelTondo 'be there soon' and six minutes after that 'on my way'. At 11.07pm, she tried to call DelTondo's cell phone.

Tyrie Jeter allowed police to look at his cell phone messages. At 10.07pm he had a message from his brother Sheldon which read: 'Is yal there already?'

Tyrie responded: 'Yea'. At 10.15pm, Sheldon texted Tyrie: 'I got left huh' – with six smiley face emojis. At 10.19pm, Sheldon texted Tyrie: 'Who all you with'.

Then at 10.30pm, Sheldon text Tyrie: 'Hanks closed.'

Police interviewed Sheldon Jeter on May 14. During the interview, he asked officers why they had come and when they informed him of DelTondo's murder, he showed 'no emotion', according to the affidavit.

Sheldon Jeter told police that he had seen Rachael DelTondo at Circle K with a 'white girl' he later identified as the police sergeant's daughter. Sheldon said DelTondo told him that 'they were going to get ice cream somewhere'.

Sheldon then told police that he drove two friends who were with him in his silver Nissan to their homes in Center Township and then drove to his own home in Aliquippa.

According to the affidavit, Sheldon told police that he was picked up by a woman, whose identity he wouldn't reveal, and taken to his mother's home -the address which he wouldn't reveal.

He said his mother's boyfriend, who he wouldn't identify, drove him home at 10pm.

Sheldon showed police a text message that he had sent at 9.29pm to a number – believed to belong to Rachael DelTondo – which read 'I wont go ok.'

The affidavit states that DelTondo, the female friend and Sheldon Jeter Jr 'were known to each other and considered friends'.

It also states that the three were linked by a prior law enforcement investigation by the City of Aliquippa police.

A police review of surveillance footage from the Circle K convenience showed DelTondo arriving at the gas station in her female friend's car.

Police were unable to locate Sheldon Jeter on the surveillance footage at the gas station.

They also believe that Sheldon's assertion that he met with DelTondo at the Circle K to be false, according to the document.

Sheldon communicated with Tyrie about accompanying him, DelTondo and the other female to Hank's Frozen Custard, investigators claimed in the affidavit.

In October 2017, school officials and members of the media received an anonymous email in containing the 2016 Aliquippa police incident report which implied she inappropriately met with a 17-year-old boy.

The report stated that officers were on patrol at around 1.50am on February 6, 2016, when they saw a car parked near the old Aliquippa Hospital.

Police noted that 'the windows were steamed over and the engine was not running.' Inside was DelTondo and the teen.

DelTondo reportedly told officers at the time that she was talking with a 'former student.'

School CEO Brian Hayden said records show the teen was never a registered student at PA Cyber.

Lozier said this exposure was a 'personal vendetta against' DelTondo.

She said that 'she didn't want her fiancé to know that she was here parked because he would get mad.'

No charges were brought against DelTondo over the incident, and police drove the teen home that evening. The report was not public knowledge until the anonymous email was sent in October last year.

The school announced they were suspending her the following month.

The leak prompted a state police investigation into Aliquippa Police - which DelTondo cooperated with.