Cass Street Cafe Crash, August 2010

A man accused of running his car onto a La Jolla sidewalk and hitting three teenagers before crashing into a bakery was acting “erratic” and wanted to know how his vehicle got inside the business, a witness testified Monday.

Troyer’s car hit an electrical box and the teenagers before crashing into the Cass Street Cafe, Partington testified.

The witness said he saw two victims go up in the air after being hit and observed a man inside the bakery with a head wound.

The witness said Troyer grabbed some papers from inside the car and started to walk away from the crash before being detained. “I heard him say, ‘Someone has stolen my car. What is my car doing here?’ “ Partington testified.

One of the injured teenagers, Alani Aguerre, testified that she heard a friend yell “Watch out!” just before the accident.

The crash dragged the 14-year-old girl into the bakery, where she was found pinned under Troyer’s car. She said she was in a coma for two weeks and her speech was checked when she woke up.

The attorneys in the case also described Troyer as a former alcoholic. His lawyer, David Thompson, said his client smoked marijuana ever morning, but had so little in his system at the time of the crash that it could not have accounted for what happened.

Uyar previously told a judge that Troyer was convicted twice in 2005 for driving under the influence. He also has convictions in 2006, 2007 and 2008 for driving with a suspended license, according to DMV records.