Alex Broumand of the Montecito Fire Department walks in mud in front of homes damaged from storms in Montecito, Calif., Thursday, Jan. 11, 2018. Rescue workers slogged through knee-deep ooze and used long poles to probe for bodies Thursday as the search dragged on for victims of the mudslides that slammed this wealthy coastal town.
Marcio Jose Sanchez, AP

Devastating mudslides in California killed 20 people this week as rescue efforts continue in the coastal town of Montecito.

Authorities have confirmed the names of the dead while four people are still missing after the early Tuesday mudslides ravaged this part of Southern California. The hillsides, left without trees or vegetation after the Thomas fire, unleashed a surge of mud following heavy rains.

Read more: In mud-battered Montecito, back-to-back disasters 'overwhelming'

In many cases, the mud burst through homes, sweeping people away. The victims include a couple who fell in love with their Montecito community, a family of Mexican immigrants and a college student and her dad, a doctor.

Here is a look at those who have died:

Rebecca Riskin

This undated photo provided by Gina Conte, shows Rebecca Riskin. Riskin, the founder of Riskin Partners, was among those killed in this week's deadly Montecito, Calif., mudslides. Her company confirmed her death in a statement posted Wednesday night, Jan. 10, 2018, on Facebook.
Gina Conte, AP

Age: 61

Riskin founded Riskin Partners, a real estate company that represented buyers and sellers in Montecito, the company's website said

The company confirmed her death in a Wednesday Facebook post

"The confirmation of her loss is incredibly devastating to her friends, family, and our community," the post read. "Per her wishes, we intend to carry out her life's work with the same strength, grace and elegance that wholly defined Rebecca."

The post said she had two children, Julia and Robert, and a husband, Ken Grand.

Jim and Alice Mitchell

This January 2017, photo provided by Kelly Weimer, shows Jim Mitchell, 89, with his wife, Alice Mitchell, 78, and their dog, Gigi. The Mitchell's and their dog had been missing since Tuesday, Jan. 9, 2018, when their Montecito, Calif., home was swept away by the torrent of mud, trees and boulders that flowed down a fire-scarred mountain and slammed into the coastal town in Santa Barbara County. On Thursday, the Santa Barbara County Sheriff's Office confirmed the couple died.
Kelly Weimer, AP

Age: Jim, 89, and Alice, 78

Jim Mitchell, the oldest person to die in the mudslide, had just celebrated his 89th birthday the day before the Tuesday disaster. 

The couple raised their two children in Orange County, Calif., before moving to Montecito in 1995. Jim worked in labor relations, and Alice was a schoolteacher. 

The couple, their daughter said, had fallen in love with their Montecito home. Their dog, Gigi, is still missing.

Marilyn Ramos, Jonathan Benitez and Kaelly Benitez    

This June 2017 photo provided by Jennifer Ramos Tapia shows, Kaelly Benitez 3, outside her family's home in Montecito, Calif. She and her mother, Marilyn Ramos, were among those killed in the Tuesday, Jan. 9, 2018 mudslides in the area.

Age: Marilyn Ramos, 27; Jonathan Benitez, 10, and Kaelly Benitez, 3

Ramos, a stay-at-home mom, was sleeping in her bed along with her daughter Kaelly Benitez when mud crashed through their rental home. Sleeping nearby was Jonathan Benitez, Kaelly's cousin and Ramos' nephew. He also died. 

"My sister was such a good person, she only thought of others to the point that she would cry with you when you were hurt or sick," said Jennifer Ramos, Marilyn Ramos' sister.

Jonathan Benitez's mother, Fabiola Benitez, is among those missing.

Marilyn Ramos' husband, Antonio Benitez, was injured but survived. His brother Victor is Jonathan father and the husband of Fabiola Benitez. Victor's 2-year-old son survived.

Antonio and Victor are Mexican immigrants who own a Montecito garden and landscaping business.

This Aug. 23, 2015 photo provided by Jennifer Ramos Tapia shows her sister, Marilyn Ramos, 27, at her family's home in Montecito, Calif. She and her 3-year-old daughter, Kaelly Ramos Benitez, were among those killed in the Tuesday, Jan. 9, 2018 mudslides in the area.
Jennifer Ramos Tapia, AP

Mark and Caroline Montgomery

Age: Mark Montgomery, 54, and Caroline Montgomery, 22

The Montgomery family had just returned from a vacation in Brazil two days before the mudslides.

Mark Montgomery's wife and oldest daughter were out of town on a business trip. On Tuesday morning, Mark, his daughter Caroline and son Duffy all were asleep in their home before mud slammed into the house, sweeping away Mark, a physician, and covering Caroline, a recent college grad. 

Mark Montgomery's son Duffy, 20, was also sleeping in the house. He tried to save Caroline, but she died in his arms. 

David Cantin

Age: 49

Cantin was a Boy Scout scoutmaster and was vice president of global sales for a medical instrument developer. 

His house was destroyed. His 14-year-old daughter, Lauren Cantin, was buried for hours before rescuers found her. She survived. Jack, her 16-year-old brother, is missing.

Josephine Gower

Age: 69

Diane Brewer told KTLA 5 in Los Angeles that her friend was someone who lived passionately and was "very gregarious."

She had two adult children and three grandchildren.

Read more: At least 18 dead as teams dig through mudslide debris in California

John McManigal

Age: 61

The mudslide destroyed the McManigal home, killed McManigal and injured his 23-year-old son, Connor, who was carried a mile by mud.

A Go Fund Me page for the family called McManigal "an amazing man, father of six, and a loving husband."

Roy Rohter

Roy Rohter was swept from his Montecito home during a mudslide Tuesday morning and killed.

Age: 84

Rohter was the founder of St. Augustine Academy, a small, private, Roman Catholic K-12 school in Ventura, Calif.

The mudslide swept him from his Montecito home. His wife, Theresa, was rescued and remains in stable condition.

“Roy’s life has been in service to his good, loving and ever-forgiving God,” St. Augustine Academy headmaster Michael Van Hecke said in a statement. “He has done so much for so many people and pro-life and Catholic education causes. ... Thousands have been blessed by the Rohters’ friendship and generosity.”  

Peter Fleurat

Age: 73

Fleurat and his partner, Ralph "Lalo" Barajas, were at home Tuesday when the floor started shaking. 

The mud broke through the walls, taking them both.

"The last thing Peter yelled out to me was, 'Lalo, grab onto some wood and don't let go,' And that was the last I heard of him," Barajas told CBS News

Sawyer Corey and Morgan Christine Corey

Age: Sawyer Corey, 12, and Morgan Christine Corey, 25

The body of Morgan Christine Corey was found Saturday. Her sister, Sawyer Corey, was found earlier.

Pinit Sutthithepa, Peerawat Sutthithepa and Richard Taylor

Age: Pinit Sutthithepa, 30; Peerawat Sutthithepa, 6; Taylor, 79

Pinit Sutthithepa, his son Peerawat, and Taylor, Pinit Sutthithepa's father-in-law, were killed when the mudslides came through. 

The elder Sutthithepa was found at 3:45 p.m. Saturday, but was not identified until Sunday morning, authorities said.

The younger Sutthithepa, who went by the nickname Pasta, enjoyed trains, family friend Kevin Touly told the Los Angeles Times

The boy's 2-year-old sister, Lydia, is still missing, the Ventura County Star reported.

Sutthithepa's work supervisor, Mike Caldwell at Toyota of Santa Barbara, launched a GoFundMe page to raise money for the surviving family. With news of Pinit Sutthithepa's death, the goal was raised to $150,000.

Martin Cabrera-Munoz

Age: 48

Cabrera-Munoz, a landscaper, grew up in Guanajuato, Mexico. He came to the United States in 1998, family members told the Los Angeles Times. The second of eight siblings — most of whom live in Southern California — he was "a jokester, a calm person and hard-working,” his youngest sister, Diana Montero, said.

Cabrera-Munoz "listened to music all day long — any type of Mexican music, rock and KISS,” she said. Though he worked long hours, he never complained and sent money back to Guanajuato where his two sons, aged 26 and 12, and his 19-year-old daughter live.

Friends have started a GoFundMe page to underwrite his funeral expenses.

Joseph Bleckel

Age: 87

A retired electrical engineer, Joseph Bleckel and his wife, Margaret, bought their Montecito home 40 years ago, drawn to the area's natural beauty, The Times reported. The couple was childless.

Margaret died of cancer 12 years ago.

Raised in Danbury, Conn., Bleckel came west after serving in the Navy.

“He worked hard and one of his major passions was going down to the beach,” Jerry Bleckel, a nephew, said. “He’d grab a lawn chair and just lounge.”

He also enjoyed going to church and driving around town. When the storm hit, the elder Bleckel's neighbors on Winding Creek Lane evacuated, but he remained and was found in his bedroom, The Times reported.