302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Willliam Alvarado Missing Person Case

Last seen in McAllen, Texas on Aug 23, 2013

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Victim Details

Created

Aug 25, 2015

Case Added

Aug 7, 2018

First Name

Willliam

Last Name

Alvarado

Current Age

Age At Disappearance

Height

70 inches

Weight

160 lbs

Weight To

170 lbs

Ethnicity

Hispanic / Latino

Gender

Male

Last Seen

Aug 23, 2013

City

McAllen

State

Texas

County

Hidalgo County

Agency ID

5762

Agency Name

Brooks County Sheriffs Office

Agency City

Falfurrias

Agency State

Texas

Agency County

Brooks County

Agency Zip Code

78355

Agency Contact

Benny Martinez

Contact Job Title

Sheriff

Agency Address

701 East Rice Street, Texas

Agency Phone

3613253696

Agency Jurisdiction

County

Agency Type

Law Enforcement

Agency Website

http://www.co.brooks.tx.us/default.aspx?Brooks_County/Sheriff

Agency Case #

15-02-14-005MP

Agency Report Date

Sep 18, 2014

Primary Agency

Brooks County Sheriffs Office

Hair Color

Brown

Left Eye Color

Unknown

Right Eye Color

Unknown

Last Updated

Oct 17, 2026

Area Last Seen:

Case Description

Any updates on this case? Let us know!

Summary based on the NamUs case record (MP29964)

William Alvarado, a 21-year-old male, was last seen on August 23, 2013, after crossing the U.S.-Mexico border near McAllen, Texas. Alvarado and a friend had successfully crossed the border in late July of 2013 from Reynosa, Tamaulipas, Mexico. Unfortunately, during the journey, William became ill and was left behind by his companion on August 22, 2013. His exact location at the time of being left behind remains unclear, and since that day, no further contact has been made with him.

His case was entered into the National Missing and Unidentified Persons System (NamUs) to assist with identification efforts, though the case remains unsolved. Authorities and his family continue to seek information about his whereabouts. If anyone has information that could help in locating William, they are encouraged to contact the relevant authorities.
Last Seen: Aug 23, 2013

Links to Additional Sources (0)

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Possible Unidentified Matches (10)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

80%Moderate

John Doe — Rio Grande City, Texas

UP53382 • Found May 23, 2017

View case

Sex ✓Male

Age 100%Est. 15–24 vs 21 when missing

Race 100%Hispanic

Location 92%39 mi away, same state

TimingFound 4 years after last seen

Height 100%5'5"–5'9" vs 5'10"

79%Possible

John Doe — Texas

UP79542 • Found Jan 7, 2018

View case

Sex ✓Male

Age 100%Est. 22–33 vs 21 when missing

Race 100%Hispanic

Location 91%44 mi away, same state

TimingFound 4 years after last seen

Height 100%5'4"–5'9" vs 5'10"

79%Possible

John Doe — Texas

UP52740 • Found Jan 6, 2018

View case

Sex ✓Male

Age 100%Est. 21–33 vs 21 when missing

Race 100%Hispanic

Location 91%44 mi away, same state

TimingFound 4 years after last seen

Height 100%5'6"–5'10" vs 5'10"

79%Possible

John Doe — Texas

UP52708 • Found Jan 6, 2018

View case

Sex ✓Male

Age 100%Est. 23–37 vs 21 when missing

Race 100%Hispanic

Location 91%44 mi away, same state

TimingFound 4 years after last seen

Height 100%5'3"–5'9" vs 5'10"

79%Possible

John Doe — Texas

UP53213 • Found Jan 6, 2018

View case

Sex ✓Male

Age 100%Est. 17–29 vs 21 when missing

Race 100%Hispanic

Location 91%44 mi away, same state

TimingFound 4 years after last seen

Height 100%5'5"–5'10" vs 5'10"

79%Possible

John Doe — Texas

UP85860 • Found Jan 5, 2018

View case

Sex ✓Male

Age 100%Est. 18–28 vs 21 when missing

Race 100%Hispanic

Location 91%44 mi away, same state

TimingFound 4 years after last seen

Height 100%5'9"–6'0" vs 5'10"

79%Possible

John Doe — Texas

UP82421 • Found May 27, 2017

View case

Sex ✓Male

Age 97%Est. 25–39 vs 21 when missing

Race 100%Hispanic

Location 91%43 mi away, same state

TimingFound 4 years after last seen

Height 100%5'5"–5'10" vs 5'10"

78%Possible

John Doe — Mission, Texas

UP81370 • Found May 23, 2021

View case

Sex ✓Male

Age 100%Est. 16–29 vs 21 when missing

Race 100%Hispanic

Location 100%3 mi away, same county

TimingFound 8 years after last seen

Height 52%5'6" vs 5'10"

Weight 100%167 lb vs 160–170 lb

Hair 60%Black vs Brown

78%Possible

John Doe — Texas

UP52606 • Found May 25, 2017

View case

Sex ✓Male

Age 100%Est. 18–27 vs 21 when missing

Race 100%Hispanic

Location 91%43 mi away, same state

TimingFound 4 years after last seen

Height 84%5'4"–5'8" vs 5'10"

77%Possible

John Doe — Pharr, Texas

UP104060 • Found Apr 11, 2023

View case

Sex ✓Male

Age 100%Est. 18–32 vs 21 when missing

Race 100%Hispanic

Location 100%3 mi away, same county

TimingFound 10 years after last seen

Height 36%5'5" vs 5'10"

Weight 93%192 lb vs 160–170 lb

Hair 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.

Willliam Alvarado Missing Person Case

Last seen in McAllen, Texas on Aug 23, 2013

Victim Details

Case Description

Links to Additional Sources (0)

Possible Unidentified Matches (10)

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Forum Posts (1)

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