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NEW YORK (CNN) -- Seven months have passed since the disappearance and slaying of Santa Barbara, California, college student Brianna Denison.

The 19-year-old undergraduate disappeared while visiting friends at the University of Nevada, Reno.

She was last seen sleeping on the living room sofa near an unlocked glass door of a friend's off-campus apartment after a night of partying.

Her friends awoke the next morning to find Denison missing, a small blood stain on her pillow. Her shoes, purse and cell phone were left behind.

Three weeks later, her body was found partially covered in snow in a nearby field. She'd been sexually assaulted and strangled.

But the killer left an unusual "calling card." According to authorities, he has a fetish for women's lingerie and makes it a habit to take the panties of his victims, leaving behind the previous victim's.

Along with Denison's remains, a pair of black thong panties was found. The panties did not belong to the victim and contained DNA from another, unidentified female.

Police are asking any woman who has lost a pair of black thong panties, size small, with a Pink Panther cartoon and heart design, to come forward.

Police have also been able to connect DNA found at the crime scene to a prior sexual assault that occurred December 16 and involved another university student. She managed to escape her attacker and described him in more detail to authorities. Watch how a serial rapist is stalking a college town »

Additionally, both crimes bear striking similarity to several other sexual assaults in the area, leading police to conclude that Denison's killer is a serial rapist who most likely lives or works in the area. The attacks all took place in close proximity to each other, during similar times of day and used similar methods.

In one of the earlier attacks, a university student was walking across a parking lot to her car when a man approached her from behind and put her in a choke hold. He pushed her to the ground and groped her. She fought him off and screamed. He kicked her in the head and then ran, dropping a couple of unopened condom packets.

In another incident, a student was attacked as she was parking her car outside her home. The assailant tried to choke her and force her inside his vehicle. He then drove her a few minutes away to a secluded area and sexually assaulted her, then beat her and drove her back to her residence.

He threatened that "he'd be back" if she told anyone. Victims describe the assailant as a white male, 28 to 40 years old, square chin, brown hair, about 5-foot-6, strong but not muscular, a small pot belly and short beard.

The vehicle associated with him is a small truck with an extended cab, automatic transmission and front bucket style seats with velour upholstery. One witness also describes seeing a baby shoe lying on the floorboard in the front passenger side of the truck. 

Police and family are asking for the public's help in bringing Brianna Denison's killer to justice.

Please call the the Reno Police Hot Line at 775-745-3521 or the Secret Witness Line at 775-322-4900. Secret Witness is offering a $2,500 reward for anonymous tips that lead to an arrest and prosecution.

Editor's note: CNN.com has a business partnership with CareerBuilder.com, which serves as the exclusive provider of job listings and services to CNN.com.

High salaries have a nasty stigma attached them. One that reeks of years of school, advanced qualifications, extensive training and many years of experience, which some people just don't have.

While these are in fact requirements of some high-figure salaries, they aren't a prerequisite for all of them.

What many workers don't know is that there are numerous jobs that pay well above the average full-time worker's salary of $33,634* -- that don't require a Ph.D. or at least 10 years experience.

That's not to say that the following positions are easy to come by -- like any position, no matter what the salary, you do have some qualifications to score the job.

To help you figure out your options, we came up with a list of 15 jobs that earn in the $70,000 range and are expected to increase in demand between now and 2016.

They require various levels of experience and education so take a peek and see if there's something for you:

Radiation therapist
Annual median income: $70,010
Projected employment in 2016: 18,000**
Increase between 2006 and 2016: 25 percent

Nuclear power reactor operator
Annual median income: $70,410
Projected employment in 2016: 4,200
Increase between 2006 and 2016: 11 percent

Management analyst
Annual median income: $70,990
Projected employment in 2016: 827,000
Increase between 2006 and 2016: 22 percent

Industrial-organizational psychologist
Annual median income: $86,420
Projected employment in 2016: 2,400
Increase between 2006 and 2016: 21 percent

Environmental engineer
Annual median income: $72,350
Projected employment in 2016: 68,000
Increase between 2006 and 2016: 25 percent

First-line supervisor/manager of police and detectives
Annual median income: $72,620
Projected employment in 2016: 102,000
Increase between 2006 and 2016: 9 percent

Computer systems analyst
Annual median income: $73,090
Projected employment in 2016: 650,000
Increase between 2006 and 2016: 29 percent

Advertising and promotions manager
Annual median income: $73,666
Projected employment in 2016: 50,000
Increase between 2006 and 2016: 6 percent

Administrative law judges, adjudicators, and hearing officer
Annual median income: $74,170
Projected employment in 2016: 15,000
Increase between 2006 and 2016: 0 percent

Administrative services manager
Annual median income: $75,083
Projected employment in 2016: 276,000
Increase between 2006 and 2016: 12 percent

Education administrator, post-secondary
Annual median income: $75,780
Projected employment in 2016: 150,000
Increase between 2006 and 2016: 14 percent

Marine engineers and naval architect
Annual median income: $76,200
Projected employment in 2016: 10,000
Increase between 2006 and 2016: 11 percent

Physician assistant
Annual median income: $78,450
Projected employment in 2016: 83,000
Increase between 2006 and 2016: 27 percent

Agricultural sciences teacher, post-secondary
Annual median income: $78,460
Projected employment in 2016: 2.1 million (post-secondary teachers)
Increase between 2006 and 2016: 23 percent

Veterinarian
Annual median income: $79,368
Projected employment in 2016: 84,000
Increase between 2006 and 2016: 35 percent

*Figures based on data from the Bureau of Labor Statistics and CBSalary.com
**Employment data from the Bureau of Labor Statistics

Editor's note: CNN.com has a business partnership with CareerBuilder.com, which serves as the exclusive provider of job listings and services to CNN.com.

According to the U.S. Census Bureau's 2006 American Community Survey, approximately 80 percent -- or 223.2 million people -- of Americans use only English at home.

The remaining 20 percent -- 55.8 million people -- speak a language other than English. Add the millions of tourists visiting the country each year and you have a huge demand for workers who can communicate in more than one language.

Thankfully, bilingual workers come to the rescue. In almost every line of work the ability to speak a second language makes you a valuable asset.

Any job that requires you to interact with customers -- either in person, on the phone or online -- can use your knowledge of a second (or third) language. Think about it: Every additional customer you can speak with not only improves his or her experience but also brings in revenue to your employer.

The states with the largest percentage of citizens speaking a language other than English at home are California, New Mexico, Texas, New York and Arizona.

Spanish is by far the most popular non-English language spoken at home with roughly 34 million speakers nationwide. Still, there are millions of people speaking other languages -- including French, German, Mandarin, Arabic and lesser known languages -- that also benefit from bilingual workers.

If you speak more than one language or have thought about learning a second one, here are some industries and jobs where your skills will come in handy.

Industry: Health care
Why: Patients visiting emergency rooms and doctor's offices come from all walks of life. In fact, America's reputation as a leader in medicine attracts people from around the world, so you never know what language you'll hear when someone walks through the door.

Jobs: Registered nurse, paramedic, physician's assistant, home health aide

Industry: Hospitality Why: Spas, resorts and hotels help visitors escape their daily routine and makes them feel like royalty. Creating a little bit of paradise -- for a tourist or a local just trying to get away -- is easier when you can understand what your client is saying to you.

Jobs: Concierge, resort manager, hotel manager, desk clerk

Industry: Education
Why: One of the richer aspects of an American education is the exposure to different cultures. You can walk into most classrooms, from kindergarten through graduate levels, and find students who come from multilingual households or who are studying abroad.

Jobs: Teacher, ESL instructor, guidance counselor

Industry: Law enforcement
Why: Among the many duties of law enforcement personnel is interviewing people, either to solve crimes or to understand what's happening in a conflict. You can save a lot of time (and maybe even a life) if you don't have to wait for an interpreter.

Jobs: Police officer, investigator, security guard, probation officer, corrections officer

Industry: Customer service
Why: Every aspect of customer service involves dealing with people. Depending on where you work, you might have customers who are tourists or who come from households where English isn't spoken. Knowing more than one language means you can communicate to a larger amount of visitors, which both your employer and customers will appreciate.

Jobs: Sales clerk, demonstrator, retail store supervisor, computer support specialist, customer service representative

Industry: Social services
Why: Social service workers meet with families, adoption agencies and schools in order to ensure the well-being of children. The fewer language barriers between the worker, children and important people in their environment, the smoother things can run.

Jobs: Family social worker, substance abuse social worker, social work administration

Industry: FinanceWhy: Money doesn't only stay on one continent, so in the world of finance, whether you're a teller or the CEO of an investment bank, you're dealing with euros and yen and the languages that come with them.

Jobs: Teller, financial adviser, investment banker, accountant

Industry: Communication
Why: Whether your job is talking to the media or writing for a publication, words are your livelihood. The more you know, the better you can do your job. Whether it enables you to speak to a reporter or interview a source for a story, being bilingual makes your job easier.