Colarusso, the Dover police captain, said authorities are interested in whether their suspect made a cell phone call while he was in the Dover woman's home.
Colarusso doesn't think it's likely their suspect made a cell phone call while he was in the Dover woman's home.
The passage said he was interested in knowing whether the suspect made the call. They didn't say whether they thought that he had or not... so there is no way to know for certain. 
( z0 think :ARG0 ( z1 person :name ( z2 name :op "Colarusso" ) ) :ARG1 ( z3 likely :ARG1 ( z4 call :ARG0 ( z5 person :ARG2-of ( z6 suspect :ARG1 ( z7 they ) ) ) :instrument ( z8 phone :mod ( z9 cell ) ) :time ( z10 be-located-at :ARG1 z5 :ARG2 ( z11 home :poss ( z12 woman :location ( z13 city :name ( z14 name :op "Dover" ) ) ) ) ) ) ) :polarity - )
(z0 / think-01
    :ARG0 (z1 / person
              :name (z2 / name
                        :op1 "Colarusso"))
    :ARG1 (z3 / likely-01
              :ARG1 (z4 / call-02
                        :ARG0 (z5 / person
                                  :ARG2-of (z6 / suspect-01
                                               :ARG1 (z7 / they)))
                        :instrument (z8 / phone
                                        :mod (z9 / cell))
                        :time (z10 / be-located-at-91
                                   :ARG1 z5
                                   :ARG2 (z11 / home
                                              :poss (z12 / woman
                                                         :location (z13 / city
                                                                        :name (z14 / name
                                                                                   :op1 "Dover")))))))
    :polarity -)
Colarusso does n't think it 's likely their suspect made a cell phone call while he was in the Dover woman 's home .
z1 :name z2
z2 :op1 1
z0 :polarity 0
z0 :ARG0 z1
z0 :ARG1 z3
z5 :ARG2-of z6
z6 :ARG1 z7
z8 :mod z9
z4 :instrument z8
z4 :ARG0 z5
z3 :ARG1 z4
z4 :time z10
z10 :ARG1 z5
z13 :name z14
z14 :op1 2
z12 :location z13
z11 :poss z12
z10 :ARG2 z11