The person at the center of this case
David Allen McAllister
Missing Person · Open
9 years waiting · since 2017
Missing Person: David Allen McAllister
Justice for David Allen McAllister — the trail went cold in 2017, but the truth hasn't.
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Key leads to think about
📍
location
Lead #1Why was David's cell phone last detected near Vender Veer Park in Davenport rather than closer to his Bettendorf home?
⏰
timeline
Lead #2What was David's intended destination or activity when he left early on May 11th?
💡
clue
Lead #3Given his interest in camping and hiking, could he have gone to a remote outdoor location?
David Allen McAllister, a 22-year-old from Bettendorf, Iowa, left his home in the early morning hours of May 11, 2017, saying he would return that evening but never did. His cell phone last pinged near Vender Veer Park in Davenport around noon that day, and he has not contacted family or been seen since, which is highly unusual for him. Despite enjoying outdoor activities like camping and hiking, David's disappearance remains unsolved and investigators continue seeking information about his whereabouts.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
📞
contact
Lead #4Who was David in contact with before his departure, and what was discussed?
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Official wording
Source Narrative
NamUs case MP39170. Missing person: David Allen McAllister.
Last known contact: 2017-05-10 in Bettendorf, Scott, IA. Circumstances: David was last seen at his home in Bettendorf, IA on 05/10/2017.
David left in the early hours of 05/11/2017 and said he would return that evening. His cell phone has not been used since before noon that day around Vender Veer park in Davenport, IA.
Has not made contact with family, which is out of the norm, and hasn't been seen since. David enjoys camping and hiking.
Demographics: 22 years, Male, White / Caucasian. Physical description: 5 ft 9 in, 160 lbs, hair: Blond/Strawberry, eyes: Blue.
Clothing and accessories: Clothing: Black shirt; Jeans; Footwear: Black converse tennis shoes. Investigating agency: Bettendorf Police Department | 17-1173.
Timeline of Events
👁️
2017-05-10
Last known contact
David was last seen at his home in Bettendorf, IA
👤
2017-05-11
early morningDeparture from home
David left in the early hours of 05/11/2017 stating he would return that evening
📞
2017-05-11
around noonLast cell phone activity
Cell phone last used around Vender Veer Park in Davenport, IA before noon
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:May 10, 2017
Last Updated:June 29, 2026
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Any information, no matter how small, could be crucial to solving this case.
Phone: 5363444020
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Case Information
Incident:May 10, 2017
Last Updated:June 29, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5363444020
You can remain anonymous