MARSHALLTOWN, Iowa (AP) — Authorities say officers didn't find a homicide suspect in a house they'd surrounded in Marshalltown.

A SWAT team was sent Tuesday after police received a tip that 19-year-old Jose Morales was hiding in the house. Morales is suspected of shooting to death 20-year-old Dedrikk Fisher on Saturday.

Marshalltown Police Chief Michael Tupper says officers had obtained a warrant for their search of the house. The officers used a megaphone and fired several canisters of tear gas into the house. Their subsequent search didn't turn up Morales.

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