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 near Vender Veer Park in Davenport when he lived in Bettendorf? What was he doing there?
⏰
timeline
Lead #2What happened between early morning departure and the noon cell phone ping? Who did he contact or meet?
💡
clue
Lead #3Given David's interest in camping and hiking, could he have gone to a remote outdoor location and encountered an accident or foul play?
David Allen McAllister, a 22-year-old from Bettendorf, Iowa, left his home early on 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 had no contact with family since—highly unusual behavior. Despite his love of camping and hiking, no trace of David has been found in over eight years, and investigators are seeking any information about his whereabouts or activities that day.
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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.
👁️
witness
Lead #4Who saw David leave his home that morning? Did anyone see him in Davenport or near the park?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
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
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2017-05-11
early morningDeparture from home
David left his home in the early hours of 05/11/2017 and said he would return that evening
📞
2017-05-11
around noonLast cell phone activity
David's cell phone was last used around noon near Vender Veer Park in Davenport, IA
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:May 10, 2017
Last Updated:June 23, 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 23, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5363444020
You can remain anonymous